├── .gitattributes ├── .github └── workflows │ └── go.yml ├── .gitignore ├── README.md ├── accessibility ├── README.md ├── logo.png ├── pdf_add_image_alt_text.go ├── pdf_copy_page_with_accessibility.go └── pdf_set_language_identifier.go ├── advanced ├── README.md ├── grayscale_input.pdf ├── grayscale_output.pdf └── pdf_grayscale_transform.go ├── analysis ├── README.md ├── pdf_all_objects.go ├── pdf_detect_scanned.go ├── pdf_get_object.go ├── pdf_info.go ├── pdf_inspect.go ├── pdf_print_content_streams.go └── pdf_summarize_images.go ├── annotations ├── README.md ├── pdf_annotate_add_ellipse.go ├── pdf_annotate_add_file.go ├── pdf_annotate_add_ink.go ├── pdf_annotate_add_line.go ├── pdf_annotate_add_rectangle.go ├── pdf_annotate_add_text.go └── pdf_list_annotations.go ├── arabic-text ├── Amiri-Regular.ttf ├── arabic-text.pdf └── pdf_write_arabic.go ├── attachment ├── README.md ├── dummy.xml ├── minimal.pdf ├── pdf_add_attachment.go └── pdf_get_attachment.go ├── barcode ├── README.md ├── pdf_add_barcode.go └── pdf_add_qr_code.go ├── build_examples.sh ├── compress ├── README.md ├── outputs │ ├── ouput_file_1.pdf │ ├── ouput_file_2.pdf │ └── ouput_file_3.pdf ├── pdf_font_subsetting.go ├── pdf_optimize.go ├── pdf_remove_unused_resources.go └── test_files │ ├── test_file_1.pdf │ ├── test_file_2.pdf │ └── test_file_3.pdf ├── concurrent-processing ├── README.md └── concurrent_extraction.go ├── drawing ├── README.md ├── pdf_draw_lines.go ├── pdf_draw_shapes.go ├── unipdf-draw-lines.pdf └── unipdf-draw-shapes.pdf ├── extract-bullet-lists ├── README.md ├── extract_bullet_list.go ├── output │ ├── list_file1.txt │ ├── list_file2_page1.txt │ └── list_file2_page2.txt └── test-files │ ├── tagged-pdf-2.pdf │ └── untagged-pdf-3.pdf ├── extract ├── README.md ├── extract_text_bound.go ├── pdf_extract_fonts.go ├── pdf_extract_images.go ├── pdf_extract_location.go ├── pdf_extract_text.go ├── pdf_simple_extraction.go ├── pdf_tables.go ├── reconstruct_text.go └── reconstruct_words.go ├── forms ├── DoHyeon-Regular.ttf ├── README.md ├── fdf_fields_info.go ├── filled_form_rich.pdf ├── form-fill-custom-text-color.go ├── form_field_with_colored_text_fields.pdf ├── form_fields_rotations.json ├── form_fields_rotations.pdf ├── formdata.json ├── images │ └── 1.jpg ├── pdf_fill_and_flatten_with_apearance.go ├── pdf_form_action.go ├── pdf_form_add.go ├── pdf_form_fields_rotations.go ├── pdf_form_fill_custom_font.go ├── pdf_form_fill_fdf_merge.go ├── pdf_form_fill_image.go ├── pdf_form_fill_json.go ├── pdf_form_flatten.go ├── pdf_form_flatten_non_url.go ├── pdf_form_get_field_data.go ├── pdf_form_list_fields.go ├── pdf_form_partial_flatten.go ├── pdf_form_with_text_color.go ├── rounded-mplus-1p-regular.ttf ├── sample_form.json ├── sample_form.pdf ├── sample_form_output.pdf ├── sample_form_rich.json └── template1.pdf ├── go.mod ├── go.sum ├── grid ├── README.md ├── logo.png ├── pdf_grid_colspan.go ├── pdf_grid_rowspan.go ├── pdf_grid_simple.go ├── pdf_grid_wrapping.go ├── unipdf-grid-colspan.pdf ├── unipdf-grid-rowspan.pdf ├── unipdf-grid-simple.pdf └── unipdf-grid-wrapping.pdf ├── hebrew-text ├── OpenSans-Regular.ttf ├── hebrew-text.pdf └── pdf_write_hebrew.go ├── image ├── README.md ├── pdf_add_image_to_page.go ├── pdf_images_to_pdf.go ├── pdf_images_to_pdf_lazy.go └── pdf_list_images.go ├── invoice ├── README.md ├── invoice_advanced.pdf ├── invoice_simple.pdf ├── pdf_invoice_advanced.go ├── pdf_invoice_simple.go └── unidoc-logo.png ├── javascript └── pdf_add_javascript_docopen.go ├── jbig2 ├── checkerboard-squares-black-white.jb2 ├── checkerboard-squares-black-white.jpg ├── document.jb2 ├── jbig2_compress_image.go ├── jbig2_compress_image_in_pdf.go ├── jbig2_decompress.go ├── jbig2_decompress_with_globals.go └── jbig2_globals.jb2 ├── license ├── README.md ├── unipdf_license_key_usage_log.go ├── unipdf_license_loading_metered.go ├── unipdf_license_loading_offline.go └── unipdf_offline_license_info.go ├── metadata ├── README.md ├── pdf_get_custom_xmp_metadata.go ├── pdf_get_xmp_media_management_metadata.go ├── pdf_get_xmp_pdf_metadata.go ├── pdf_get_xmp_pdfaid_metadata.go ├── pdf_metadata_get_docinfo.go ├── pdf_metadata_get_xml.go ├── pdf_metadata_set_docinfo.go ├── pdf_set_custom_xmp_metadata.go ├── pdf_set_xmp_media_management_metadata.go └── pdf_set_xmp_pdf_metadata.go ├── multi-font-encoder ├── fonts │ ├── Batang.ttf │ ├── NotoSerifEthiopic_Condensed-Black.ttf │ ├── OpenSans-Regular.ttf │ └── PCSB Hebrew Regular.ttf ├── multiple-language-text-using-multi-font.pdf └── use_composite_TTFPdfFonts.go ├── outlines ├── README.md ├── pdf_create_outlines.go ├── pdf_get_outlines.go └── pdf_set_outlines.go ├── pages ├── README.md ├── pdf_4up.go ├── pdf_append_contents.go ├── pdf_crop.go ├── pdf_merge.go ├── pdf_merge_advanced.go ├── pdf_merge_with_page_numbers.go ├── pdf_page_info.go ├── pdf_page_rotate.go ├── pdf_page_side_note.go ├── pdf_rotate.go ├── pdf_rotate_flatten.go ├── pdf_split.go ├── pdf_split_advanced.go └── pdf_split_and_remove_unused_resources.go ├── pdfa ├── pdf_apply_standard.go ├── pdf_validate_standard.go ├── pdfa2_apply_standard.go ├── pdfa2_validate_standard.go ├── pdfa3_apply_standard.go └── pdfa3_validate_standard.go ├── redact ├── README.md ├── outputs │ └── test_file01_redacted.pdf ├── redact_text.go └── test_files │ └── test_file01.pdf ├── render ├── README.md ├── jpeg2k │ └── lib_jpeg2k_encoder.go ├── pdf_image_render.go └── pdf_image_render_custom_encoder_cgo.go ├── report ├── README.md ├── Roboto-Bold.ttf ├── Roboto-Regular.ttf ├── pdf-custom-toc.pdf ├── pdf_custom_toc.go ├── pdf_report.go ├── pdf_report_from_csv.go ├── pdf_report_landscape.go ├── pdf_tables.go ├── report_from_csv.pdf ├── report_from_csv_preview.png ├── test-data.csv ├── unidoc-logo.png ├── unidoc-report-landscape.pdf ├── unidoc-report.pdf └── unipdf-tables.pdf ├── sanitize ├── README.md ├── outputs │ └── JSPopupCalendarSanitized.pdf ├── pdf_modify_contents.go ├── pdf_sanitize_document.go ├── test-files │ └── JSPopupCalendar.pdf ├── unidoc-file-modified.pdf └── unidoc-file.pdf ├── search-and-replace ├── READ.md ├── replace_text.go ├── search_text.go └── test-data │ ├── file1.pdf │ └── result.pdf ├── security ├── README.md ├── pdf_check_permissions.go ├── pdf_protect.go ├── pdf_security_info.go └── pdf_unlock.go ├── signatures ├── README.md ├── ltv │ ├── README.md │ ├── pdf_ltv_enable_signed_file.go │ ├── pdf_sign_ltv_extra_revision.go │ ├── pdf_sign_ltv_one_revision.go │ └── pdf_sign_ltv_timestamp_revision.go ├── pdf_image_sign_appearance.go ├── pdf_sign_and_encrypt_pdf.go ├── pdf_sign_appearance.go ├── pdf_sign_docmdp.go ├── pdf_sign_docmdp_invalid_changes.go ├── pdf_sign_docmdp_valid_changes.go ├── pdf_sign_external.go ├── pdf_sign_external_aws_kms.go ├── pdf_sign_external_globalsign.go ├── pdf_sign_external_google_cloud_kms.go ├── pdf_sign_generate_keys.go ├── pdf_sign_get_revision.go ├── pdf_sign_hsm_pkcs11_cgo.go ├── pdf_sign_new_page.go ├── pdf_sign_pades_b_b.go ├── pdf_sign_pades_b_lt.go ├── pdf_sign_pades_b_lta.go ├── pdf_sign_pades_b_t.go ├── pdf_sign_pem_multicert.go ├── pdf_sign_pkcs12.go ├── pdf_sign_timestamp.go ├── pdf_sign_twice_visible_annotation.go ├── pdf_sign_validate.go ├── pdf_sign_validate_pades_b_b.go └── pdf_sign_validate_timestamp.go ├── svg ├── fonts │ ├── Roboto-Bold.ttf │ └── Roboto-Regular.ttf ├── pdf_report_with_logo.go ├── pdf_shapes_and_text_svg.pdf ├── pdf_svg_shapes_and_text.go ├── svgs │ ├── different_shapes.svg │ └── unidoc-logo.svg └── unidoc-report_with_svg.pdf ├── table-info ├── README.md ├── output │ ├── partitioned_content_1.txt │ └── partitioned_content_2.txt ├── partition_text.go ├── table_content.go └── test-files │ ├── PDF Tables.pdf │ └── table.pdf ├── tables ├── README.md ├── images │ ├── image1.jpg │ ├── image2.jpg │ ├── image3.jpg │ ├── image4.jpg │ ├── image5.jpg │ ├── image6.jpg │ ├── image7.jpg │ └── image8.jpg ├── pdf_tables_colspan.go ├── pdf_tables_division_layout.go ├── pdf_tables_header_images.go ├── pdf_tables_row_wrap.go ├── pdf_tables_rowspan.go ├── pdf_tables_simple.go ├── pdf_tables_styling.go ├── pdf_tables_subtables.go ├── unidoc-logo.png ├── unipdf-colSpan-tables.pdf ├── unipdf-header-imgs-tables.pdf ├── unipdf-rowSpan-tables.pdf ├── unipdf-simple-tables.pdf ├── unipdf-style-tables.pdf ├── unipdf-subtables-tables.pdf ├── unipdf-tables-division-layout.pdf └── unipdf-tables-row-wrap.pdf ├── templates ├── README.md ├── airplane-ticket │ ├── README.md │ ├── pdf_airplane_ticket.go │ ├── templates │ │ ├── main.tpl │ │ └── res │ │ │ ├── logo.png │ │ │ └── screenshot.png │ ├── ticket.json │ └── unipdf-airplain-ticket.pdf ├── aviation-checklist │ ├── README.md │ ├── checklist.json │ ├── pdf_aviation_checklist.go │ ├── templates │ │ ├── footer.tpl │ │ ├── header.tpl │ │ ├── main.tpl │ │ └── res │ │ │ ├── logo.png │ │ │ └── screenshot.png │ └── unipdf-aviation-checklist.pdf ├── bank-account-statement │ ├── README.md │ ├── account_statement.json │ ├── pdf_bank_account_statement.go │ ├── templates │ │ ├── footer.tpl │ │ ├── header.tpl │ │ ├── main.tpl │ │ └── res │ │ │ ├── logo.png │ │ │ └── screenshot.png │ └── unipdf-bank-account-statement.pdf ├── boarding-pass │ ├── README.md │ ├── boarding_pass.json │ ├── pdf_boarding_pass.go │ ├── templates │ │ ├── main.tpl │ │ └── res │ │ │ ├── baggage.png │ │ │ ├── logo.png │ │ │ ├── screenshot.png │ │ │ └── seat_icon.png │ └── unipdf-boarding-pass.pdf ├── concert-ticket │ ├── README.md │ ├── concert-ticket.json │ ├── pdf_concert_ticket.go │ ├── templates │ │ ├── main.tpl │ │ └── res │ │ │ ├── map.png │ │ │ ├── red-guitar.png │ │ │ ├── screenshot.png │ │ │ ├── ticket-img.png │ │ │ └── unidoc-logo.png │ └── unipdf-ticket.pdf ├── documentation │ ├── README.md │ ├── pdf_templates_documentation.go │ ├── templates │ │ ├── chapters │ │ │ ├── 01_00_Introduction.tpl │ │ │ ├── 02_00_Components.tpl │ │ │ ├── 02_01_Paragraphs.tpl │ │ │ ├── 02_02_Images.tpl │ │ │ ├── 02_03_Rectangles.tpl │ │ │ ├── 02_04_Ellipses.tpl │ │ │ ├── 02_05_Lines.tpl │ │ │ ├── 02_06_Charts.tpl │ │ │ ├── 02_07_Page_Breaks.tpl │ │ │ ├── 03_00_Container_Components.tpl │ │ │ ├── 03_01_Divisions.tpl │ │ │ ├── 03_02_Tables.tpl │ │ │ ├── 03_03_Lists.tpl │ │ │ ├── 03_04_Chapters.tpl │ │ │ ├── 04_00_Attributes_and_Resources.tpl │ │ │ ├── 04_01_Fonts.tpl │ │ │ ├── 04_02_Images.tpl │ │ │ ├── 04_03_Colors.tpl │ │ │ ├── 04_04_Margin_and_Padding.tpl │ │ │ ├── 04_05_Border_Radius.tpl │ │ │ └── 05_00_Golang_Interface.tpl │ │ ├── footer.tpl │ │ ├── front-page.tpl │ │ ├── header.tpl │ │ ├── helpers.tpl │ │ ├── main.tpl │ │ └── res │ │ │ ├── fonts │ │ │ ├── DejaVuSansMono.ttf │ │ │ └── Roboto-Regular.ttf │ │ │ └── images │ │ │ ├── hero0.png │ │ │ ├── hero1.png │ │ │ ├── hero2.png │ │ │ ├── hero3.png │ │ │ ├── logo.png │ │ │ ├── reports.png │ │ │ ├── sample-image-2.jpg │ │ │ ├── sample-image-3.jpg │ │ │ ├── sample-image-4.jpg │ │ │ ├── sample-image-5.jpg │ │ │ ├── sample-image.jpg │ │ │ └── screenshot.png │ └── unipdf-templates-documentation.pdf ├── lab-results │ ├── README.md │ ├── lab_results.json │ ├── pdf_lab_results.go │ ├── templates │ │ ├── footer.tpl │ │ ├── header.tpl │ │ ├── main.tpl │ │ └── res │ │ │ ├── logo.png │ │ │ └── screenshot.png │ └── unipdf-lab-results.pdf ├── log-book-report │ ├── README.md │ ├── contents │ │ └── operations_log.json │ ├── pdf_log_book.go │ ├── templates │ │ ├── footer.tpl │ │ ├── front-page.tpl │ │ ├── header.tpl │ │ ├── main.tpl │ │ └── res │ │ │ ├── Exo-Bold.ttf │ │ │ ├── Exo-Italic.ttf │ │ │ ├── Exo-Regular.ttf │ │ │ └── pages.png │ └── unipdf-log-book.pdf ├── medical-bill │ ├── README.md │ ├── medical_bill.json │ ├── pdf_medical_bill.go │ ├── templates │ │ ├── main.tpl │ │ └── res │ │ │ ├── clinic_care.png │ │ │ ├── health_care.png │ │ │ ├── hospital_logo.png │ │ │ └── screenshot.png │ └── unipdf-medical-bill.pdf ├── medication-schedule-report │ ├── README.md │ ├── data.json │ ├── pdf_medication_schedule.go │ ├── templates │ │ ├── footer.tpl │ │ ├── main.tpl │ │ └── res │ │ │ ├── arial.ttf │ │ │ ├── arialbd.ttf │ │ │ ├── bar-code.png │ │ │ ├── checkmark-empty.png │ │ │ ├── checkmark.png │ │ │ ├── logo.png │ │ │ └── screenshot.png │ └── unipdf-medication-schedule.pdf ├── receipt │ ├── README.md │ ├── contents │ │ └── receipt.json │ ├── pdf_receipt.go │ ├── templates │ │ ├── main.tpl │ │ └── res │ │ │ ├── screenshot.png │ │ │ └── unidoc-logo.png │ └── unipdf-receipt.pdf ├── rental-agreement │ ├── README.md │ ├── pdf_rental_agreement.go │ ├── rental_data.json │ ├── templates │ │ ├── footer.tpl │ │ ├── header.tpl │ │ ├── main.tpl │ │ └── res │ │ │ ├── arialbd.ttf │ │ │ ├── house.png │ │ │ ├── logo.png │ │ │ ├── pages.png │ │ │ └── qr.png │ └── unipdf-rental-agreement.pdf ├── security-report │ ├── README.md │ ├── pdf_security_report.go │ ├── templates │ │ ├── footer.tpl │ │ ├── front-page.tpl │ │ ├── header.tpl │ │ ├── main.tpl │ │ └── res │ │ │ ├── hero.png │ │ │ ├── logo.png │ │ │ ├── page1.png │ │ │ └── pages.png │ └── unipdf-security-report.pdf ├── trade-confirmation │ ├── README.md │ ├── pdf_trade_confirmation.go │ ├── templates │ │ ├── main.tpl │ │ └── res │ │ │ └── screenshot.png │ ├── trade.json │ └── unipdf-trade-confirmation.pdf └── warehouse-shipment-report │ ├── README.md │ ├── pdf_warehouse_shipment_report.go │ ├── shipment_report.json │ ├── templates │ ├── header.tpl │ ├── main.tpl │ └── res │ │ ├── logo.png │ │ └── screenshot.png │ └── unipdf-warehouse-shipment-report.pdf ├── testing ├── README.md ├── formdata.json ├── pdf_count_color_pages_bench.go ├── pdf_grayscale_convert_bench.go ├── pdf_passthrough_bench.go ├── pdf_update_fields.go └── sample_form.pdf ├── text ├── README.md ├── Roboto-Regular.ttf ├── pdf_cmyk_color.go ├── pdf_detect_signature.go ├── pdf_formatted_text.go ├── pdf_highlight_text.go ├── pdf_insert_text.go ├── pdf_search_replace.go ├── pdf_search_replace_advanced.go ├── pdf_text_color.go ├── pdf_text_locations.go ├── pdf_text_vertical_alignment.go ├── pdf_to_csv.go ├── pdf_using_unicode_font.go ├── rounded-mplus-1p-regular.ttf └── styled_paragraph.pdf ├── watermarks ├── README.md ├── Roboto-Regular.ttf ├── pdf_add_text_watermark.go ├── pdf_remove_watermark_image.go ├── pdf_watermark_image.go ├── watermark_input.pdf └── watermark_output.pdf └── writer ├── pdf_modify_contents.go ├── unidoc-file-modified.pdf └── unidoc-file.pdf /.gitattributes: -------------------------------------------------------------------------------- 1 | * -crlf 2 | -------------------------------------------------------------------------------- /.github/workflows/go.yml: -------------------------------------------------------------------------------- 1 | name: Build all examples 2 | 3 | on: 4 | push: 5 | branches: [ master ] 6 | pull_request: 7 | branches: [ master ] 8 | 9 | jobs: 10 | build: 11 | name: Build Go ${{ matrix.go }} 12 | runs-on: ubuntu-latest 13 | strategy: 14 | matrix: 15 | go: [ '1.24', '1.23', '1.22', '1.21', '1.20' ] 16 | steps: 17 | - name: Check out code into the Go module directory 18 | uses: actions/checkout@v2 19 | 20 | - name: Setup go 21 | uses: actions/setup-go@v1 22 | with: 23 | go-version: ${{ matrix.go }} 24 | 25 | - name: Setup ImageMagick's MagickWand 26 | run: 27 | sudo apt-get install libmagickwand-dev imagemagick 28 | 29 | - name: Build all 30 | run: | 31 | ./build_examples.sh 32 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | .idea 2 | *.mdb 3 | *.userprefs 4 | *.pidb 5 | *.suo 6 | *.out 7 | *.pyc 8 | *.wixobj 9 | *.msi 10 | *.wixpdb 11 | build 12 | dist 13 | setuptools-* 14 | .DS_Store 15 | *.so 16 | nohup.out 17 | *.orig 18 | *.rej 19 | *~ 20 | *.o 21 | *.pyo 22 | tests/*.err 23 | *.swp 24 | *.swo 25 | store/* 26 | *.log 27 | *.egg-info 28 | dist/ 29 | doc/_build/ 30 | distribute-* 31 | pip-log.txt 32 | .coverage 33 | data/ 34 | *.egg 35 | .tox 36 | out.txt 37 | junit*.xml 38 | .ropeproject 39 | .cache 40 | tmp/ 41 | bin/ 42 | *.sublime-project 43 | *.sublime-workspace 44 | *.pprof 45 | gin-bin 46 | pkg/buildinfo/buildinfo.go 47 | temp/ 48 | buildinfo.json 49 | .vscode 50 | 51 | pdf/bak 52 | 53 | pdf/report/pdf_report 54 | 55 | pdf/outlines 56 | 57 | pdf/testing/pdf_count_color_pages_bench 58 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Examples 2 | 3 | This example repository demonstrates many use cases for UniDoc's UniPDF library. Example code should make 4 | it easy for users to get started with UniPDF. Feel free to add to this by submitting 5 | a pull request. 6 | 7 | While the majority of examples are fully in pure Go, there are a few examples that demonstrate additional 8 | functionality that requires CGO and external dependencies. Those examples are clarified by filename suffix "_cgo.go". 9 | 10 | ## License codes 11 | UniPDF requires license codes to operate, there are two options: 12 | - Metered License API keys: Free ones can be obtained at https://cloud.unidoc.io 13 | - Offline codes: Can be purchased at https://unidoc.io/pricing 14 | 15 | Most of the examples demonstrate loading the Metered License API keys through an environment 16 | variable `UNIDOC_LICENSE_API_KEY`. 17 | 18 | Examples for Offline License Key loading can be found in the license subdirectory. 19 | 20 | ### Build all examples 21 | 22 | #### Building with go modules: 23 | Simply run the build script which builds all the binaries to subfolder `bin/` 24 | 25 | ```bash 26 | $ ./build_examples.sh 27 | ``` 28 | 29 | #### Building with GOPATH: 30 | Building with GOPATH requires a slightly different approach due to the `/v4` semantic import portion of the unipdf import paths. There are two options: 31 | 32 | Both options start with: 33 | - `go get github.com/unidoc/unipdf/...` to download the packages 34 | 35 | Then one can decide between the two options: 36 | 37 | 1. Remove the `/v4/` in the unipdf import paths, e.g. use `github.com/unidoc/unipdf/core` instead of `github.com/unidoc/unipdf/v4/core` 38 | 2. Alternatively create a symbolic link from the v3 subdirectory of unipdf to the unipdf repository, i.e. 39 | ```bash 40 | ln -s $GOPATH/src/github.com/unidoc/unipdf $GOPATH/src/github.com/unidoc/unipdf/v4 41 | ``` 42 | or move/copy the unipdf folder to unipdf/v4 if symbolic links are not an option. 43 | 44 | Once this has been done, then can build using the build script as well: 45 | ```bash 46 | $ ./build_examples.sh 47 | ``` 48 | or build individual example codes as desired. 49 | -------------------------------------------------------------------------------- /accessibility/README.md: -------------------------------------------------------------------------------- 1 | ## PDF Accessibility Examples. 2 | 3 | The examples in this section are showcasing how to work with accessibility features. 4 | 5 | ## Examples 6 | 7 | - [pdf_add_image_alt_text.go](pdf_add_image_alt_text.go) showcases how to constuct a `StructTreeRoot` object and add alternate text for images. 8 | - [pdf_set_language_identifier.go](pdf_set_language_identifier.go) demonstrates how to set the language identifier for the document and its content. 9 | - [pdf_copy_page_with_accessibility.go](pdf_copy_page_with_accessibility.go) demonstrates how to copy pages from an existing PDF file to a new PDF file and preserve the structure tree information. -------------------------------------------------------------------------------- /accessibility/logo.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/accessibility/logo.png -------------------------------------------------------------------------------- /advanced/README.md: -------------------------------------------------------------------------------- 1 | ## Advanced UniPDF Examples 2 | 3 | - pdf_grayscale_transform.go converts an entire PDF file to grayscale in a vectorized fashion, 4 | including images and all content. 5 | 6 | This advanced example demonstrates some of the more complex capabilities of UniPDF, showing the capability to process 7 | and transform objects and contents. 8 | 9 | The conversion applies to： 10 | 1. XObject images - and transforming through each color component to corresponding DeviceGray component. 11 | 2. Inline images. 12 | 3. Shapes such as lines as curves in the content stream. 13 | 4. Shadings and patterns. 14 | 15 | 16 | 17 | 18 | -------------------------------------------------------------------------------- /advanced/grayscale_input.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/advanced/grayscale_input.pdf -------------------------------------------------------------------------------- /advanced/grayscale_output.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/advanced/grayscale_output.pdf -------------------------------------------------------------------------------- /analysis/README.md: -------------------------------------------------------------------------------- 1 | # PDF analysis and debugging. 2 | 3 | The examples in this section are intended to be used for debugging and getting information from 4 | PDF files. 5 | 6 | ## Examples 7 | 8 | - [pdf_all_objects.go](pdf_all_objects.go) outputs all numbered objects decoded and sorted to assist with debugging. 9 | - [pdf_detect_scanned.go](pdf_detect_scanned.go) checks for the signs of a scanned document. 10 | - [pdf_get_object.go](pdf_get_object.go) retrieves and writes out a specific numbered object (decoded). 11 | - [pdf_info.go](pdf_info.go) outputs basic info about a PDF file. 12 | - [pdf_inspect.go](pdf_inspect.go) performs a basic inspection on a PDF file and outptus some statistics on objects present. 13 | - [pdf_print_content_streams.go](pdf_print_content_streams.go) outputs the content streams for a specific page or all pages in a PDF file. 14 | 15 | -------------------------------------------------------------------------------- /analysis/pdf_detect_scanned.go: -------------------------------------------------------------------------------- 1 | /* 2 | * Detect scanned PDF files by looking through the object types and determining whether it is likely to be a scanned file. 3 | * 4 | * Run as: go run pdf_detect_scanned.go input.pdf 5 | */ 6 | 7 | package main 8 | 9 | import ( 10 | "fmt" 11 | "os" 12 | 13 | "github.com/unidoc/unipdf/v4/common/license" 14 | "github.com/unidoc/unipdf/v4/model" 15 | ) 16 | 17 | func init() { 18 | // Make sure to load your metered License API key prior to using the library. 19 | // If you need a key, you can sign up and create a free one at https://cloud.unidoc.io 20 | err := license.SetMeteredKey(os.Getenv(`UNIDOC_LICENSE_API_KEY`)) 21 | if err != nil { 22 | panic(err) 23 | } 24 | } 25 | 26 | func main() { 27 | if len(os.Args) < 2 { 28 | fmt.Printf("Syntax: go run pdf_detect_scanned.go input1.pdf input2.pdf ...\n") 29 | os.Exit(1) 30 | } 31 | 32 | for _, inputPath := range os.Args[1:] { 33 | err := detectScanned(inputPath) 34 | if err != nil { 35 | fmt.Printf("Error: %v\n", err) 36 | } 37 | } 38 | } 39 | 40 | func detectScanned(inputPath string) error { 41 | pdfReader, f, err := model.NewPdfReaderFromFile(inputPath, nil) 42 | if err != nil { 43 | return err 44 | } 45 | defer f.Close() 46 | 47 | numPages, err := pdfReader.GetNumPages() 48 | if err != nil { 49 | return err 50 | } 51 | fmt.Printf("%s (%d pages) - ", inputPath, numPages) 52 | objTypes, err := pdfReader.Inspect() 53 | if err != nil { 54 | return err 55 | } 56 | 57 | fontObjs, ok := objTypes["Font"] 58 | if !ok || fontObjs < 2 { 59 | fmt.Printf("SCANNED!\n") 60 | } else { 61 | fmt.Printf("not scanned (has text objects)\n") 62 | } 63 | 64 | return nil 65 | } 66 | -------------------------------------------------------------------------------- /analysis/pdf_info.go: -------------------------------------------------------------------------------- 1 | /* 2 | * Prints basic PDF info: number of pages and encryption status. 3 | * 4 | * Run as: go run pdf_info.go input1.pdf [input2.pdf] ... 5 | */ 6 | 7 | package main 8 | 9 | import ( 10 | "fmt" 11 | "os" 12 | 13 | "github.com/unidoc/unipdf/v4/common/license" 14 | "github.com/unidoc/unipdf/v4/model" 15 | ) 16 | 17 | func init() { 18 | // Make sure to load your metered License API key prior to using the library. 19 | // If you need a key, you can sign up and create a free one at https://cloud.unidoc.io 20 | err := license.SetMeteredKey(os.Getenv(`UNIDOC_LICENSE_API_KEY`)) 21 | if err != nil { 22 | panic(err) 23 | } 24 | } 25 | 26 | func main() { 27 | if len(os.Args) < 2 { 28 | fmt.Printf("Print out basic properties of PDF files\n") 29 | fmt.Printf("Usage: go run pdf_info.go input.pdf [input2.pdf] ...\n") 30 | os.Exit(1) 31 | } 32 | 33 | for _, inputPath := range os.Args[1:len(os.Args)] { 34 | fmt.Printf("Input file: %s\n", inputPath) 35 | 36 | ret, err := getPdfProperties(inputPath) 37 | if err != nil { 38 | fmt.Printf("Error: %v\n", err) 39 | os.Exit(1) 40 | } 41 | 42 | fmt.Printf(" Num Pages: %d\n", ret.NumPages) 43 | fmt.Printf(" Is Encrypted: %t\n", ret.IsEncrypted) 44 | fmt.Printf(" Is Viewable (without pass): %t\n", ret.CanView) 45 | } 46 | } 47 | 48 | type PdfProperties struct { 49 | IsEncrypted bool 50 | CanView bool // Is the document viewable without password? 51 | NumPages int 52 | } 53 | 54 | func getPdfProperties(inputPath string) (*PdfProperties, error) { 55 | ret := PdfProperties{} 56 | 57 | f, err := os.Open(inputPath) 58 | if err != nil { 59 | return nil, err 60 | } 61 | 62 | defer f.Close() 63 | 64 | pdfReader, err := model.NewPdfReader(f) 65 | if err != nil { 66 | return nil, err 67 | } 68 | 69 | isEncrypted, err := pdfReader.IsEncrypted() 70 | if err != nil { 71 | return nil, err 72 | } 73 | 74 | ret.IsEncrypted = isEncrypted 75 | ret.CanView = true 76 | 77 | // Try decrypting with an empty one. 78 | if isEncrypted { 79 | auth, err := pdfReader.Decrypt([]byte("")) 80 | if err != nil { 81 | return nil, err 82 | } 83 | ret.CanView = auth 84 | return &ret, nil 85 | } 86 | 87 | numPages, err := pdfReader.GetNumPages() 88 | if err != nil { 89 | return nil, err 90 | } 91 | ret.NumPages = numPages 92 | 93 | return &ret, nil 94 | } 95 | -------------------------------------------------------------------------------- /annotations/README.md: -------------------------------------------------------------------------------- 1 | # PDF Annotations 2 | 3 | Annotations are different from normal PDF page contents and are stored separately. They are intended to mark up 4 | document contents, without changing the original document contents. 5 | 6 | Support for creating annotations in UniPDF is through the unipdf/annotator package. 7 | The annotator package creates the Annotation object and also an appearance stream, which is required to make 8 | the annotation look the same in all viewers. 9 | 10 | UniPDF's model package has support for all types of PDF annotations, whereas the annotator currently supports Square, 11 | Circle, Ellipse, Ink, Line, and File attachment annotations. Support for more annotation types will be added over time. 12 | 13 | If you need support for an unsupported annotation, please create an issue in this repository. 14 | 15 | The examples in this folder illustrate a few capabilities for creating ellipse, file attachment, ink, lines, rectangles, and text annotation. 16 | 17 | ## Examples 18 | 19 | - [pdf_annotate_add_ellipse.go](pdf_annotate_add_ellipse.go) adds a circle/ellipse annotation to a specified location on a page. 20 | - [pdf_annotate_add_file.go](pdf_annotate_add_file.go) adds a file attachment annotation placed in certain position in a page. 21 | - [pdf_annotate_add_ink.go](pdf_annotate_add_ink.go) adds an ink annotation to a specified location on a page. 22 | - [pdf_annotate_add_line.go](pdf_annotate_add_line.go) adds a line with arrowhead between two specified points on a page. 23 | - [pdf_annotate_add_rectangle.go](pdf_annotate_add_rectangle.go) adds a rectangle annotation to a specified location on a page. 24 | - [pdf_annotate_add_text.go](pdf_annotate_add_text.go) adds a text annotation with a user specified string to a fixed location on every page. 25 | - [pdf_list_annotations.go](pdf_list_annotations.go) lists all annotations in a PDF file. 26 | 27 | -------------------------------------------------------------------------------- /annotations/pdf_list_annotations.go: -------------------------------------------------------------------------------- 1 | /* 2 | * Lists annotations in a PDF file. 3 | * 4 | * Run as: go run pdf_list_annotations.go input.pdf [input2.pdf] ... 5 | */ 6 | 7 | package main 8 | 9 | import ( 10 | "fmt" 11 | "os" 12 | 13 | "github.com/unidoc/unipdf/v4/common/license" 14 | "github.com/unidoc/unipdf/v4/model" 15 | ) 16 | 17 | func init() { 18 | // Make sure to load your metered License API key prior to using the library. 19 | // If you need a key, you can sign up and create a free one at https://cloud.unidoc.io 20 | err := license.SetMeteredKey(os.Getenv(`UNIDOC_LICENSE_API_KEY`)) 21 | if err != nil { 22 | panic(err) 23 | } 24 | } 25 | 26 | func main() { 27 | if len(os.Args) < 2 { 28 | fmt.Printf("Usage: go run pdf_list_annotations.go input.pdf [input2.pdf] ...\n") 29 | os.Exit(1) 30 | } 31 | 32 | for _, inputPath := range os.Args[1:len(os.Args)] { 33 | err := listAnnotations(inputPath) 34 | if err != nil { 35 | fmt.Printf("Error: %v\n", err) 36 | os.Exit(1) 37 | } 38 | } 39 | } 40 | 41 | func listAnnotations(inputPath string) error { 42 | pdfReader, f, err := model.NewPdfReaderFromFile(inputPath, nil) 43 | if err != nil { 44 | return err 45 | } 46 | defer f.Close() 47 | 48 | numPages, err := pdfReader.GetNumPages() 49 | if err != nil { 50 | return err 51 | } 52 | for i := 0; i < numPages; i++ { 53 | page, err := pdfReader.GetPage(i + 1) 54 | if err != nil { 55 | fmt.Printf("Error: %v\n", err) 56 | } 57 | 58 | fmt.Printf("-- Page %d\n", i+1) 59 | annotations, err := page.GetAnnotations() 60 | if err != nil { 61 | return err 62 | } 63 | printAnnotations(annotations) 64 | } 65 | 66 | return nil 67 | } 68 | 69 | func printAnnotations(annotations []*model.PdfAnnotation) { 70 | for idx, annotation := range annotations { 71 | fmt.Printf(" %d. %s\n", idx+1, annotation.String()) 72 | } 73 | } 74 | -------------------------------------------------------------------------------- /arabic-text/Amiri-Regular.ttf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/arabic-text/Amiri-Regular.ttf -------------------------------------------------------------------------------- /arabic-text/arabic-text.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/arabic-text/arabic-text.pdf -------------------------------------------------------------------------------- /attachment/README.md: -------------------------------------------------------------------------------- 1 | # File Attachments 2 | 3 | Exemplify how to attach files into a PDF document and retrieves it. 4 | 5 | ## Examples 6 | 7 | - [pdf_add_attachment.go](pdf_add_attachment.go) Attach files into a PDF document, either by manually loading the file content or passing the file name. 8 | - [pdf_get_attachment.go](pdf_get_attachment.go) Retrieve list of file attachment and save it locally. -------------------------------------------------------------------------------- /attachment/dummy.xml: -------------------------------------------------------------------------------- 1 | 2 | Tove 3 | Jani 4 | Reminder 5 | Don't forget me this weekend! 6 | -------------------------------------------------------------------------------- /attachment/minimal.pdf: -------------------------------------------------------------------------------- 1 | %PDF-1.1 2 | %¥±ë 3 | 4 | 1 0 obj 5 | << /Type /Catalog 6 | /Pages 2 0 R 7 | >> 8 | endobj 9 | 10 | 2 0 obj 11 | << /Type /Pages 12 | /Kids [3 0 R] 13 | /Count 1 14 | /MediaBox [0 0 300 144] 15 | >> 16 | endobj 17 | 18 | 3 0 obj 19 | << /Type /Page 20 | /Parent 2 0 R 21 | /Resources 22 | << /Font 23 | << /F1 24 | << /Type /Font 25 | /Subtype /Type1 26 | /BaseFont /Times-Roman 27 | >> 28 | >> 29 | >> 30 | /Contents 4 0 R 31 | >> 32 | endobj 33 | 34 | 4 0 obj 35 | << /Length 55 >> 36 | stream 37 | BT 38 | /F1 18 Tf 39 | 0 0 Td 40 | (Hello World) Tj 41 | ET 42 | endstream 43 | endobj 44 | 45 | xref 46 | 0 5 47 | 0000000000 65535 f 48 | 0000000018 00000 n 49 | 0000000077 00000 n 50 | 0000000178 00000 n 51 | 0000000457 00000 n 52 | trailer 53 | << /Root 1 0 R 54 | /Size 5 55 | >> 56 | startxref 57 | 565 58 | %%EOF 59 | -------------------------------------------------------------------------------- /attachment/pdf_get_attachment.go: -------------------------------------------------------------------------------- 1 | /* 2 | * Retrieve list of attachment file and save it locally. 3 | */ 4 | 5 | package main 6 | 7 | import ( 8 | "fmt" 9 | "os" 10 | "path/filepath" 11 | 12 | "github.com/unidoc/unipdf/v4/common/license" 13 | "github.com/unidoc/unipdf/v4/model" 14 | ) 15 | 16 | func init() { 17 | // Make sure to load your metered License API key prior to using the library. 18 | // If you need a key, you can sign up and create a free one at https://cloud.unidoc.io 19 | err := license.SetMeteredKey(os.Getenv(`UNIDOC_LICENSE_API_KEY`)) 20 | if err != nil { 21 | panic(err) 22 | } 23 | } 24 | 25 | func main() { 26 | inputPath := "output.pdf" 27 | 28 | err := listAttachments(inputPath) 29 | if err != nil { 30 | fmt.Printf("%v\n", err) 31 | os.Exit(1) 32 | } 33 | 34 | fmt.Println("Done") 35 | } 36 | 37 | func listAttachments(inputPath string) error { 38 | // Read the input pdf file. 39 | f, err := os.Open(inputPath) 40 | if err != nil { 41 | return err 42 | } 43 | defer f.Close() 44 | 45 | pdfReader, err := model.NewPdfReader(f) 46 | if err != nil { 47 | return err 48 | } 49 | 50 | files, err := pdfReader.GetAttachedFiles() 51 | if err != nil { 52 | return err 53 | } 54 | 55 | _, err = os.Stat("output") 56 | if os.IsNotExist(err) { 57 | err = os.Mkdir("output", 0777) 58 | if err != nil { 59 | return err 60 | } 61 | } 62 | 63 | for _, v := range files { 64 | err := os.WriteFile(filepath.Join("output", fmt.Sprintf("%s.xml", v.Name)), v.Content, 0655) 65 | if err != nil { 66 | return err 67 | } 68 | 69 | fmt.Printf("Name: %s; Hash: %s\n", v.Name, v.Hash) 70 | } 71 | 72 | return nil 73 | } 74 | -------------------------------------------------------------------------------- /barcode/README.md: -------------------------------------------------------------------------------- 1 | # Barcode/QR PDF creation 2 | 3 | Exemplifies how to apply barcode and QR codes to existing PDF files or newly generates PDFs. 4 | 5 | The examples use github.com/boombuler/barcode for creating the codes. 6 | 7 | ## Examples 8 | 9 | - [pdf_add_barcode.go](pdf_add_barcode.go) creates a barcode and inserts on a specific location in a PDf file. 10 | - [pdf_add_qr_code.go](pdf_add_qr_code.go) creates QR code and inserts on a specific location in a PDf file. 11 | -------------------------------------------------------------------------------- /build_examples.sh: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | 3 | # Stop script execution on error 4 | set -euo pipefail 5 | 6 | mkdir -p bin 7 | 8 | echo "Building to bin/ folder" 9 | 10 | # CGO required to build example relying on crypto11 and imagick dependency. 11 | find . -name "*.go" ! -name "*_cgo.go" ! -name "lib_*" -print0 | CGO_ENABLED=0 xargs -0 -n1 -I% bash -c 'go build -o bin % || exit 255' 12 | find . -name "*_cgo.go" -print0 | CGO_ENABLED=1 CGO_CFLAGS_ALLOW='-Xpreprocessor' xargs -0 -n1 -I% bash -c 'go build -o bin % || exit 255' 13 | -------------------------------------------------------------------------------- /compress/README.md: -------------------------------------------------------------------------------- 1 | # PDF compression (optimization) 2 | 3 | Optimization of PDF output is implemented in the PDF writer of UniPDF and contains multiple options (optimize.Options) 4 | ```go 5 | // Options describes PDF optimization parameters. 6 | type Options struct { 7 | CombineDuplicateStreams bool 8 | CombineDuplicateDirectObjects bool 9 | ImageUpperPPI float64 10 | ImageQuality int 11 | UseObjectStreams bool 12 | CombineIdenticalIndirectObjects bool 13 | CompressStreams bool 14 | CleanFonts bool 15 | SubsetFonts bool 16 | CleanContentstream bool 17 | CleanUnusedResources bool 18 | } 19 | ``` 20 | 21 | From the available filters listed above, all of them except `ImageQuality` and `ImageUpperPPI` enable lossless compression. 22 | 23 | ## Examples 24 | 25 | - [pdf_optimize.go](pdf_optimize.go) compresses a PDF file with some typical options. 26 | - [pdf_font_subsetting.go](pdf_font_subsetting.go) illustrates how to reduce a PDF file size by subsetting all fonts used in the document using `SubsetFonts` Optimizer option. 27 | - [pdf_remove_unused_resources.go](pdf_remove_unused_resources.go) reduces file size by removing unused resources such as Images, Xforms, fonts and external graphics state dictionaries. 28 | -------------------------------------------------------------------------------- /compress/outputs/ouput_file_1.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/compress/outputs/ouput_file_1.pdf -------------------------------------------------------------------------------- /compress/outputs/ouput_file_2.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/compress/outputs/ouput_file_2.pdf -------------------------------------------------------------------------------- /compress/outputs/ouput_file_3.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/compress/outputs/ouput_file_3.pdf -------------------------------------------------------------------------------- /compress/test_files/test_file_1.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/compress/test_files/test_file_1.pdf -------------------------------------------------------------------------------- /compress/test_files/test_file_2.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/compress/test_files/test_file_2.pdf -------------------------------------------------------------------------------- /compress/test_files/test_file_3.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/compress/test_files/test_file_3.pdf -------------------------------------------------------------------------------- /concurrent-processing/README.md: -------------------------------------------------------------------------------- 1 | # concurrent processing 2 | 3 | UniPDF supports document level concurrent processing. This means processing each document separately in its own go routine. 4 | The concurrency is supported on document level for now. Page level concurrency in UniPDF is not safe yet. 5 | 6 | ## Examples 7 | - [concurrent_extraction.go](concurrent_extraction.go) Extracts text from multiple documents provided via the command line arguments concurrently and saves the result to a text file. -------------------------------------------------------------------------------- /drawing/README.md: -------------------------------------------------------------------------------- 1 | # Drawing on PDF 2 | Drawing in PDF is done through vectorized operands in the content stream. 3 | UniPDF provides functions to do this for common shapes, otherwise custom 4 | objects can always be applied to the content stream directly. 5 | 6 | ## Examples 7 | 8 | - [pdf_draw_shapes.go](pdf_draw_shapes.go) draws multiple shapes in a new PDF file. 9 | - [pdf_draw_lines.go](pdf_draw_lines.go) showcases the capabilities of creator lines. 10 | -------------------------------------------------------------------------------- /drawing/unipdf-draw-lines.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/drawing/unipdf-draw-lines.pdf -------------------------------------------------------------------------------- /drawing/unipdf-draw-shapes.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/drawing/unipdf-draw-shapes.pdf -------------------------------------------------------------------------------- /extract-bullet-lists/README.md: -------------------------------------------------------------------------------- 1 | # Bullet list extractor examples 2 | 3 | This example demonstrates how to extract bullet point lists from a pdf document. 4 | bullet point lists are lists that are marked with bullet point characters, with sequential numbering system i.e roman numerals, english alphabet, or hindu arabic numerals (1,2,3). 5 | The extracted content only contains the texts that are part of the bullet list and related sub lists. 6 | The rest of contents is ignored. 7 | 8 | To extract bullet point lists from a given pdf page: 9 | - First construct an `extractor` from a given pdf page. 10 | - Then get the `PageText` object by calling `ExtractPageText()` method. 11 | - Finally get the slice of bullet point lists from `PageText.List()`.
12 | This returns a slice of lists that have a tree structure. 13 | ```go 14 | ex, err := extractor.New(pdfPage) 15 | // handle error 16 | pageText, _, _, err := ex.ExtractPageText() 17 | // handle another error 18 | bulletLists := pageText.List() 19 | ``` 20 | 21 | The textual representation is found by calling the `Text()` method on the bulletLists. 22 | 23 | By default the bullet list in a given pdf page are extracted in two ways. 24 | 1. Using document accessibility tags if the file is tagged 25 | 2. If tags are not available then simple regex matching is performed on the raw text of that page to detect the possible bullet point lists. 26 | 27 | However this behavior can be changed using the `DisableDocumentTags` attribute of `Options` object in extractor package. 28 | 29 | This can be done as follows. 30 | ```go 31 | options := &extractor.Options{ 32 | DisableDocumentTags: true, 33 | } 34 | ex, err := extractor.NewWithOptions(pdfPage, options) 35 | ``` 36 | If the pdf document was tagged poorly, especially if the bullet lists were not tagged with appropriate tag structures, then the second way of extracting may give a better result. This way we can take advantage of both extraction methods. -------------------------------------------------------------------------------- /extract-bullet-lists/extract_bullet_list.go: -------------------------------------------------------------------------------- 1 | /* 2 | * An example code to extract bullet point list from pdf document. 3 | * 4 | * Run as: go run extract_bullet_list.go input.pdf 1 output.txt 5 | */ 6 | 7 | package main 8 | 9 | import ( 10 | "fmt" 11 | "os" 12 | "strconv" 13 | 14 | "github.com/unidoc/unipdf/v4/common/license" 15 | "github.com/unidoc/unipdf/v4/extractor" 16 | "github.com/unidoc/unipdf/v4/model" 17 | ) 18 | 19 | func init() { 20 | // Make sure to load your metered License API key prior to using the library. 21 | // If you need a key, you can sign up and create a free one at https://cloud.unidoc.io 22 | err := license.SetMeteredKey(os.Getenv(`UNIDOC_LICENSE_API_KEY`)) 23 | if err != nil { 24 | panic(err) 25 | } 26 | } 27 | 28 | func main() { 29 | if len(os.Args) < 4 { 30 | fmt.Printf("Usage: go run extract_bullet_list.go inputFile.pdf 1 output.txt \n") 31 | os.Exit(1) 32 | } 33 | inputFile := os.Args[1] 34 | p := os.Args[2] 35 | output := os.Args[3] 36 | page, err := strconv.Atoi(p) 37 | if err != nil { 38 | fmt.Printf("wrong page value.\nUsage: go run extract_bullet_list.go inputFile.pdf 1 output.txt\n") 39 | os.Exit(1) 40 | } 41 | fout, err := os.Create(output) 42 | if err != nil { 43 | fmt.Printf("failed: %s", err) 44 | os.Exit(1) 45 | } 46 | defer fout.Close() 47 | txt := extractBulletList(inputFile, page) 48 | _, err = fout.WriteString(txt) 49 | if err != nil { 50 | fmt.Printf("failed to write: %s ", err) 51 | os.Exit(1) 52 | } 53 | fmt.Println(txt) 54 | } 55 | 56 | // extractBulletList extracts bullet point lists on `file` at `pageNum` and returns the string representation of the list. 57 | func extractBulletList(file string, pageNum int) string { 58 | pdfReader, f, err := model.NewPdfReaderFromFile(file, nil) 59 | if err != nil { 60 | panic(err) 61 | } 62 | defer f.Close() 63 | page, err := pdfReader.GetPage(pageNum) 64 | if err != nil { 65 | panic(err) 66 | } 67 | options := &extractor.Options{ 68 | DisableDocumentTags: false, 69 | } 70 | ex, err := extractor.NewWithOptions(page, options) 71 | if err != nil { 72 | panic(err) 73 | } 74 | pageText, _, _, err := ex.ExtractPageText() 75 | if err != nil { 76 | panic(err) 77 | } 78 | lists := pageText.List() 79 | txt := lists.Text() 80 | return txt 81 | } 82 | -------------------------------------------------------------------------------- /extract-bullet-lists/output/list_file2_page2.txt: -------------------------------------------------------------------------------- 1 | 2.2. Put your cursor in a paragraph of the style you want to modify. So if you want to modify the 2 | style Body Text, put your cursor in a paragraph of Body Text style. 3 | 2.3. Use Format > Font, Format > Paragraph, Format > Borders and Shading etc to make the 4 | required changes 5 | 2.4. If you're modifying a paragraph style, click within the paragraph (so no text is selected) or, 6 | select the whole paragraph (triple-click to select the whole paragraph). If you're modifying 7 | a character style, select one or more characters in that character style. 8 | 2.5. From the "Styles" box on the Formatting toolbar, re-choose the name of the style. Word 9 | will ask if you want to update the style, or reapply the current style to the selected text, as 10 | shown in Figure 1. If you want to say sane, do not tick the Automatically Update Style box. 11 | -------------------------------------------------------------------------------- /extract-bullet-lists/test-files/tagged-pdf-2.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/extract-bullet-lists/test-files/tagged-pdf-2.pdf -------------------------------------------------------------------------------- /extract-bullet-lists/test-files/untagged-pdf-3.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/extract-bullet-lists/test-files/untagged-pdf-3.pdf -------------------------------------------------------------------------------- /extract/README.md: -------------------------------------------------------------------------------- 1 | Various extraction example code. 2 | 3 | ## Examples 4 | 5 | - [extract_text_bound.go](extract_text_bound.go) The example showcases how to extract all text for each page along with it's boundary information. 6 | - [pdf_extract_location.go](pdf_extract_location.go) The example showcases how to extract text at certain location. 7 | - [pdf_extract_text.go](pdf_extract_text.go) The example showcases how to extract all text for each page of a PDF file. 8 | - [pdf_simple_extraction.go](pdf_simple_extraction.go) The example showcases how to use a simple extraction procedure in the text extraction process, which skips table processing and topological ordering. This procedure could be useful in some cases where full extraction process giving unwanted extraction result, especially when processing tables. 9 | - [pdf_tables.go](pdf_tables.go) The example showcase how to extract all tables from the specified pages of one or more PDF files. 10 | - [reconstruct_text.go](reconstruct_text.go) Example that illustrates the accuracy of the text extraction, by first extracting all TextMarks and then reconstructing the text by writing out the text page-by-page to a new PDF with the creator package. 11 | - [reconstruct_words.go](reconstruct_words.go) The example expands upon [reconstruct_text.go](reconstruct_text.go) to show word placements. 12 | - [pdf_extract_images.go](pdf_extract_images.go) explains how to extract images from an existing PDF. The code passes through each page, goes through the content stream and finds XObject Images and inline images. Also handles images referred within XObject Form content streams. The output files are saved as a zip archive. 13 | -------------------------------------------------------------------------------- /extract/pdf_extract_text.go: -------------------------------------------------------------------------------- 1 | /* 2 | * PDF to text: Extract all text for each page of a pdf file. 3 | * 4 | * Run as: go run pdf_extract_text.go input.pdf 5 | */ 6 | 7 | package main 8 | 9 | import ( 10 | "fmt" 11 | "os" 12 | 13 | "github.com/unidoc/unipdf/v4/common/license" 14 | "github.com/unidoc/unipdf/v4/extractor" 15 | "github.com/unidoc/unipdf/v4/model" 16 | ) 17 | 18 | func init() { 19 | // Make sure to load your metered License API key prior to using the library. 20 | // If you need a key, you can sign up and create a free one at https://cloud.unidoc.io 21 | err := license.SetMeteredKey(os.Getenv(`UNIDOC_LICENSE_API_KEY`)) 22 | if err != nil { 23 | panic(err) 24 | } 25 | } 26 | 27 | func main() { 28 | if len(os.Args) < 2 { 29 | fmt.Printf("Usage: go run pdf_extract_text.go input.pdf\n") 30 | os.Exit(1) 31 | } 32 | 33 | inputPath := os.Args[1] 34 | 35 | err := outputPdfText(inputPath) 36 | if err != nil { 37 | fmt.Printf("Error: %v\n", err) 38 | os.Exit(1) 39 | } 40 | } 41 | 42 | // outputPdfText prints out contents of PDF file to stdout. 43 | func outputPdfText(inputPath string) error { 44 | f, err := os.Open(inputPath) 45 | if err != nil { 46 | return err 47 | } 48 | 49 | defer f.Close() 50 | 51 | pdfReader, err := model.NewPdfReader(f) 52 | if err != nil { 53 | return err 54 | } 55 | 56 | numPages, err := pdfReader.GetNumPages() 57 | if err != nil { 58 | return err 59 | } 60 | 61 | fmt.Printf("--------------------\n") 62 | fmt.Printf("PDF to text extraction:\n") 63 | fmt.Printf("--------------------\n") 64 | for i := 0; i < numPages; i++ { 65 | pageNum := i + 1 66 | 67 | page, err := pdfReader.GetPage(pageNum) 68 | if err != nil { 69 | return err 70 | } 71 | 72 | ex, err := extractor.New(page) 73 | if err != nil { 74 | return err 75 | } 76 | 77 | text, err := ex.ExtractText() 78 | if err != nil { 79 | return err 80 | } 81 | 82 | fmt.Println("------------------------------") 83 | fmt.Printf("Page %d:\n", pageNum) 84 | fmt.Printf("\"%s\"\n", text) 85 | fmt.Println("------------------------------") 86 | } 87 | 88 | return nil 89 | } 90 | -------------------------------------------------------------------------------- /extract/pdf_simple_extraction.go: -------------------------------------------------------------------------------- 1 | /* 2 | * Using a plain/simple extraction mode in the text extraction process, which skips table processing and topological ordering. 3 | * 4 | * Run as: go run pdf_simple_extraction.go input.pdf 5 | */ 6 | 7 | package main 8 | 9 | import ( 10 | "fmt" 11 | "os" 12 | 13 | "github.com/unidoc/unipdf/v4/common/license" 14 | "github.com/unidoc/unipdf/v4/extractor" 15 | "github.com/unidoc/unipdf/v4/model" 16 | ) 17 | 18 | func init() { 19 | // Make sure to load your metered License API key prior to using the library. 20 | // If you need a key, you can sign up and create a free one at https://cloud.unidoc.io 21 | err := license.SetMeteredKey(os.Getenv(`UNIDOC_LICENSE_API_KEY`)) 22 | if err != nil { 23 | panic(err) 24 | } 25 | } 26 | 27 | func main() { 28 | if len(os.Args) < 2 { 29 | fmt.Printf("Usage: go run pdf_simple_extraction.go input.pdf\n") 30 | os.Exit(1) 31 | } 32 | 33 | inputPath := os.Args[1] 34 | 35 | err := outputPdfText(inputPath) 36 | if err != nil { 37 | fmt.Printf("Error: %v\n", err) 38 | os.Exit(1) 39 | } 40 | } 41 | 42 | // outputPdfText prints out contents of PDF file to stdout. 43 | func outputPdfText(inputPath string) error { 44 | f, err := os.Open(inputPath) 45 | if err != nil { 46 | return err 47 | } 48 | 49 | defer f.Close() 50 | 51 | pdfReader, err := model.NewPdfReader(f) 52 | if err != nil { 53 | return err 54 | } 55 | 56 | numPages, err := pdfReader.GetNumPages() 57 | if err != nil { 58 | return err 59 | } 60 | 61 | fmt.Printf("--------------------\n") 62 | fmt.Printf("PDF to text extraction:\n") 63 | fmt.Printf("--------------------\n") 64 | for i := 0; i < numPages; i++ { 65 | pageNum := i + 1 66 | 67 | page, err := pdfReader.GetPage(pageNum) 68 | if err != nil { 69 | return err 70 | } 71 | 72 | ex, err := extractor.NewWithOptions(page, &extractor.Options{ 73 | ExtractionMode: extractor.ExtractionModePlain, 74 | }) 75 | if err != nil { 76 | return err 77 | } 78 | 79 | text, err := ex.ExtractText() 80 | if err != nil { 81 | return err 82 | } 83 | 84 | fmt.Println("------------------------------") 85 | fmt.Printf("Page %d:\n", pageNum) 86 | fmt.Printf("\"%s\"\n", text) 87 | fmt.Println("------------------------------") 88 | } 89 | 90 | return nil 91 | } 92 | -------------------------------------------------------------------------------- /forms/DoHyeon-Regular.ttf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/forms/DoHyeon-Regular.ttf -------------------------------------------------------------------------------- /forms/fdf_fields_info.go: -------------------------------------------------------------------------------- 1 | /* 2 | * Prints basic FDF field data in terms of key and values. 3 | * 4 | * Run as: go run fdf_fields_info.go input1.fdf [input2.fdf ...] 5 | */ 6 | 7 | package main 8 | 9 | import ( 10 | "fmt" 11 | "os" 12 | "sort" 13 | 14 | "github.com/unidoc/unipdf/v4/common/license" 15 | "github.com/unidoc/unipdf/v4/core" 16 | "github.com/unidoc/unipdf/v4/fdf" 17 | ) 18 | 19 | func init() { 20 | // Make sure to load your metered License API key prior to using the library. 21 | // If you need a key, you can sign up and create a free one at https://cloud.unidoc.io 22 | err := license.SetMeteredKey(os.Getenv(`UNIDOC_LICENSE_API_KEY`)) 23 | if err != nil { 24 | panic(err) 25 | } 26 | } 27 | 28 | func main() { 29 | if len(os.Args) < 2 { 30 | fmt.Printf("Print out basic properties of FDF files\n") 31 | fmt.Printf("Usage: go run fdf_fields_info.go input.fdf [input2.pdf] ...\n") 32 | os.Exit(1) 33 | } 34 | 35 | // Enable debug-level logging. 36 | // common.SetLogger(common.NewConsoleLogger(common.LogLevelDebug)) 37 | 38 | for _, inputPath := range os.Args[1:len(os.Args)] { 39 | fmt.Printf("Input file: %s\n", inputPath) 40 | 41 | err := printFdfInfo(inputPath) 42 | if err != nil { 43 | fmt.Printf("Error: %v\n", err) 44 | os.Exit(1) 45 | } 46 | } 47 | } 48 | 49 | func printFdfInfo(inputPath string) error { 50 | fdf, err := fdf.LoadFromPath(inputPath) 51 | if err != nil { 52 | return err 53 | } 54 | 55 | fieldMap, err := fdf.FieldDictionaries() 56 | if err != nil { 57 | return err 58 | } 59 | 60 | // Sort field names alphabetically. 61 | keys := []string{} 62 | for key, _ := range fieldMap { 63 | keys = append(keys, key) 64 | } 65 | sort.Strings(keys) 66 | 67 | for _, key := range keys { 68 | fieldDict := fieldMap[key] 69 | // Key value field data. 70 | t, _ := core.GetString(fieldDict.Get("T")) 71 | v := core.TraceToDirectObject(fieldDict.Get("V")) 72 | if t != nil && v != nil { 73 | fmt.Printf("Field T: %v, V: %v\n", t, v.String()) 74 | } 75 | 76 | } 77 | 78 | return nil 79 | } 80 | -------------------------------------------------------------------------------- /forms/filled_form_rich.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/forms/filled_form_rich.pdf -------------------------------------------------------------------------------- /forms/form_field_with_colored_text_fields.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/forms/form_field_with_colored_text_fields.pdf -------------------------------------------------------------------------------- /forms/form_fields_rotations.json: -------------------------------------------------------------------------------- 1 | [ 2 | { 3 | "name": "textfield1", 4 | "value": "Test Text Fill" 5 | }, 6 | { 7 | "name": "cb1", 8 | "value": "true" 9 | }, 10 | { 11 | "name": "cb2", 12 | "value": "true" 13 | } 14 | ] -------------------------------------------------------------------------------- /forms/form_fields_rotations.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/forms/form_fields_rotations.pdf -------------------------------------------------------------------------------- /forms/formdata.json: -------------------------------------------------------------------------------- 1 | [ 2 | { 3 | "name": "formID", 4 | "value": "202286033286049" 5 | }, 6 | { 7 | "name": "pdf_submission_new", 8 | "value": "1" 9 | }, 10 | { 11 | "name": "simple_spc", 12 | "value": "202286033286049-202286033286049" 13 | }, 14 | { 15 | "name": "adobeWarning", 16 | "value": "In order to submit this form, you should open it with Adobe Acrobat Reader." 17 | }, 18 | { 19 | "name": "name3[first]", 20 | "value": "John" 21 | }, 22 | { 23 | "name": "name3[last]", 24 | "value": "Doe" 25 | }, 26 | { 27 | "name": "email4", 28 | "value": "alpha@omega.com" 29 | }, 30 | { 31 | "name": "address5[addr_line1]", 32 | "value": "高橋町鈴木5-4-1" 33 | }, 34 | { 35 | "name": "address5[addr_line2]", 36 | "value": "-" 37 | }, 38 | { 39 | "name": "address5[city]", 40 | "value": "小泉市" 41 | }, 42 | { 43 | "name": "address5[state]", 44 | "value": "-" 45 | }, 46 | { 47 | "name": "address5[postal]", 48 | "value": "3538148" 49 | }, 50 | { 51 | "name": "fakeSubmitButton", 52 | "value": "Submit" 53 | }, 54 | { 55 | "name": "submitButton", 56 | "value": "" 57 | } 58 | ] 59 | -------------------------------------------------------------------------------- /forms/images/1.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/forms/images/1.jpg -------------------------------------------------------------------------------- /forms/pdf_form_flatten_non_url.go: -------------------------------------------------------------------------------- 1 | /* 2 | * Partially flatten form data in PDF files by using a callback to filter a non URL annotations. 3 | * 4 | * Run as: go run pdf_form_flatten_non_url.go pdf_file 5 | */ 6 | 7 | package main 8 | 9 | import ( 10 | "fmt" 11 | "os" 12 | 13 | "github.com/unidoc/unipdf/v4/annotator" 14 | "github.com/unidoc/unipdf/v4/common/license" 15 | "github.com/unidoc/unipdf/v4/model" 16 | ) 17 | 18 | func init() { 19 | // Make sure to load your metered License API key prior to using the library. 20 | // If you need a key, you can sign up and create a free one at https://cloud.unidoc.io 21 | err := license.SetMeteredKey(os.Getenv(`UNIDOC_LICENSE_API_KEY`)) 22 | if err != nil { 23 | panic(err) 24 | } 25 | } 26 | 27 | func main() { 28 | if len(os.Args) < 2 { 29 | fmt.Printf("Usage: go run pdf_form_flatten_non_url.go \n") 30 | os.Exit(1) 31 | } 32 | 33 | inputPath := os.Args[1] 34 | outputPath := fmt.Sprintf("flatten_non_url_%s", inputPath) 35 | 36 | err := nonUrlFlattenPdf(inputPath, outputPath) 37 | if err != nil { 38 | fmt.Printf("%s - Error: %v\n", inputPath, err) 39 | } 40 | } 41 | 42 | // nonUrlFlattenPdf flattens non url annotations. 43 | func nonUrlFlattenPdf(inputPath, outputPath string) error { 44 | f, err := os.Open(inputPath) 45 | if err != nil { 46 | return err 47 | } 48 | defer f.Close() 49 | 50 | pdfReader, err := model.NewPdfReader(f) 51 | if err != nil { 52 | return err 53 | } 54 | 55 | // Define annotation filter to exclude URL from flattening process. 56 | nonUrlFlattenOpts := model.FieldFlattenOpts{ 57 | AnnotFilterFunc: func(pa *model.PdfAnnotation) bool { 58 | switch pa.GetContext().(type) { 59 | case *model.PdfAnnotationLink: 60 | return false 61 | } 62 | 63 | return true 64 | }, 65 | } 66 | 67 | fieldAppearance := annotator.FieldAppearance{} 68 | err = pdfReader.FlattenFieldsWithOpts(fieldAppearance, &nonUrlFlattenOpts) 69 | if err != nil { 70 | return err 71 | } 72 | 73 | // Generate a PdfWriter instance from existing PdfReader. 74 | pdfWriter, err := pdfReader.ToWriter(nil) 75 | if err != nil { 76 | return err 77 | } 78 | 79 | // Write to file. 80 | err = pdfWriter.WriteToFile(outputPath) 81 | if err != nil { 82 | return err 83 | } 84 | 85 | return nil 86 | } 87 | -------------------------------------------------------------------------------- /forms/pdf_form_get_field_data.go: -------------------------------------------------------------------------------- 1 | /* 2 | * Get form field data for a specific field from a PDF file. 3 | * 4 | * Run as: go run pdf_form_get_field_data [full field name] 5 | * If no field specified will output values for all fields. 6 | */ 7 | 8 | package main 9 | 10 | import ( 11 | "errors" 12 | "fmt" 13 | "os" 14 | 15 | "github.com/unidoc/unipdf/v4/common/license" 16 | "github.com/unidoc/unipdf/v4/model" 17 | ) 18 | 19 | func init() { 20 | // Make sure to load your metered License API key prior to using the library. 21 | // If you need a key, you can sign up and create a free one at https://cloud.unidoc.io 22 | err := license.SetMeteredKey(os.Getenv(`UNIDOC_LICENSE_API_KEY`)) 23 | if err != nil { 24 | panic(err) 25 | } 26 | } 27 | 28 | func main() { 29 | if len(os.Args) < 2 { 30 | fmt.Printf("Usage: go run pdf_forms_list_fields.go [full field name]\n") 31 | os.Exit(1) 32 | } 33 | 34 | pdfPath := os.Args[1] 35 | fieldName := "" 36 | if len(os.Args) >= 3 { 37 | fieldName = os.Args[2] 38 | } 39 | 40 | err := printPdfFieldData(pdfPath, fieldName) 41 | if err != nil { 42 | fmt.Printf("Error: %v\n", err) 43 | os.Exit(1) 44 | } 45 | } 46 | 47 | func printPdfFieldData(inputPath, targetFieldName string) error { 48 | f, err := os.Open(inputPath) 49 | if err != nil { 50 | return err 51 | } 52 | fmt.Printf("Input file: %s\n", inputPath) 53 | 54 | defer f.Close() 55 | 56 | pdfReader, err := model.NewPdfReader(f) 57 | if err != nil { 58 | return err 59 | } 60 | 61 | acroForm := pdfReader.AcroForm 62 | if acroForm == nil { 63 | fmt.Printf(" No formdata present\n") 64 | return nil 65 | } 66 | 67 | match := false 68 | fields := acroForm.AllFields() 69 | for _, field := range fields { 70 | fullname, err := field.FullName() 71 | if err != nil { 72 | return err 73 | } 74 | if fullname == targetFieldName || targetFieldName == "" { 75 | match = true 76 | if field.V != nil { 77 | fmt.Printf("Field '%s': '%v' (%T)\n", fullname, field.V, field.V) 78 | } else { 79 | fmt.Printf("Field '%s': not filled\n", fullname) 80 | } 81 | } 82 | } 83 | 84 | if !match { 85 | return errors.New("field not found") 86 | } 87 | return nil 88 | } 89 | -------------------------------------------------------------------------------- /forms/pdf_form_partial_flatten.go: -------------------------------------------------------------------------------- 1 | /* 2 | * Partially flatten form data in PDF file by using a callback function to filter Fields. 3 | * 4 | * Run as: go run pdf_form_partial_flatten.go 5 | */ 6 | 7 | package main 8 | 9 | import ( 10 | "fmt" 11 | "os" 12 | 13 | "github.com/unidoc/unipdf/v4/annotator" 14 | "github.com/unidoc/unipdf/v4/common/license" 15 | "github.com/unidoc/unipdf/v4/model" 16 | ) 17 | 18 | func init() { 19 | // Make sure to load your metered License API key prior to using the library. 20 | // If you need a key, you can sign up and create a free one at https://cloud.unidoc.io 21 | err := license.SetMeteredKey(os.Getenv(`UNIDOC_LICENSE_API_KEY`)) 22 | if err != nil { 23 | panic(err) 24 | } 25 | } 26 | 27 | func main() { 28 | inputFile := "sample_form.pdf" 29 | outputFile := "partial_flattened_sample_form.pdf" 30 | fieldToFlatten := []string{ 31 | "email4", 32 | "address5[city]", 33 | } 34 | 35 | err := partialFlattenPdf(inputFile, outputFile, fieldToFlatten) 36 | if err != nil { 37 | fmt.Printf("%s - Error: %v\n", inputFile, err) 38 | os.Exit(1) 39 | } 40 | } 41 | 42 | // partialFlattenPdf partially flattens annotations and forms moving 43 | // the appearance stream to the page contents so cannot be modified. 44 | func partialFlattenPdf(inputPath, outputPath string, fieldToFlatten []string) error { 45 | f, err := os.Open(inputPath) 46 | if err != nil { 47 | return err 48 | } 49 | defer f.Close() 50 | 51 | pdfReader, err := model.NewPdfReader(f) 52 | if err != nil { 53 | return err 54 | } 55 | 56 | fieldFlattenOpts := model.FieldFlattenOpts{ 57 | FilterFunc: func(pf *model.PdfField) bool { 58 | for _, fName := range fieldToFlatten { 59 | if pf.T.String() == fName { 60 | return true 61 | } 62 | } 63 | 64 | return false 65 | }, 66 | } 67 | 68 | fieldAppearance := annotator.FieldAppearance{} 69 | err = pdfReader.FlattenFieldsWithOpts(fieldAppearance, &fieldFlattenOpts) 70 | if err != nil { 71 | return err 72 | } 73 | 74 | // Generate a PdfWriter instance from existing PdfReader. 75 | pdfWriter, err := pdfReader.ToWriter(nil) 76 | if err != nil { 77 | return err 78 | } 79 | 80 | // Write to file. 81 | err = pdfWriter.WriteToFile(outputPath) 82 | return err 83 | } 84 | -------------------------------------------------------------------------------- /forms/rounded-mplus-1p-regular.ttf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/forms/rounded-mplus-1p-regular.ttf -------------------------------------------------------------------------------- /forms/sample_form.json: -------------------------------------------------------------------------------- 1 | [ 2 | { 3 | "name": "formID", 4 | "value": "202286033286049" 5 | }, 6 | { 7 | "name": "pdf_submission_new", 8 | "value": "1" 9 | }, 10 | { 11 | "name": "simple_spc", 12 | "value": "202286033286049-202286033286049" 13 | }, 14 | { 15 | "name": "adobeWarning", 16 | "value": "In order to submit this form, you should open it with Adobe Acrobat Reader." 17 | }, 18 | { 19 | "name": "name3[first]", 20 | "value": "John" 21 | }, 22 | { 23 | "name": "name3[last]", 24 | "value": "Doe" 25 | }, 26 | { 27 | "name": "email4", 28 | "value": "alpha@omega.com" 29 | }, 30 | { 31 | "name": "address5[addr_line1]", 32 | "value": "sample address line 1" 33 | }, 34 | { 35 | "name": "address5[addr_line2]", 36 | "value": "sample address line 2" 37 | }, 38 | { 39 | "name": "address5[city]", 40 | "value": "sample address" 41 | }, 42 | { 43 | "name": "address5[state]", 44 | "value": "sample state" 45 | }, 46 | { 47 | "name": "address5[postal]", 48 | "value": "3538148" 49 | }, 50 | { 51 | "name": "fakeSubmitButton", 52 | "value": "Submit" 53 | }, 54 | { 55 | "name": "submitButton", 56 | "value": "" 57 | } 58 | ] 59 | -------------------------------------------------------------------------------- /forms/sample_form.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/forms/sample_form.pdf -------------------------------------------------------------------------------- /forms/sample_form_output.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/forms/sample_form_output.pdf -------------------------------------------------------------------------------- /forms/sample_form_rich.json: -------------------------------------------------------------------------------- 1 | [ 2 | { 3 | "name": "formID", 4 | "value": "202286033286049" 5 | }, 6 | { 7 | "name": "pdf_submission_new", 8 | "value": "1", 9 | "text_color": "#40E0D0" 10 | }, 11 | { 12 | "name": "simple_spc", 13 | "value": "202286033286049-202286033286049", 14 | "text_color": "#6495ED" 15 | }, 16 | { 17 | "name": "adobeWarning", 18 | "value": "In order to submit this form, you should open it with Adobe Acrobat Reader.", 19 | "text_color": "#008000" 20 | }, 21 | { 22 | "name": "name3[first]", 23 | "value": "John", 24 | "text_color": "#0000FF", 25 | "fill_color": "#FFD700", 26 | "border_color": "#CD5C5C" 27 | }, 28 | { 29 | "name": "name3[last]", 30 | "value": "Doe", 31 | "text_color": "#7dcea0" 32 | }, 33 | { 34 | "name": "email4", 35 | "value": "alpha@omega.com", 36 | "text_color": "#CD5C5C" 37 | }, 38 | { 39 | "name": "address5[addr_line1]", 40 | "value": "sample address line 1", 41 | "text_color": "#008000" 42 | }, 43 | { 44 | "name": "address5[addr_line2]", 45 | "value": "sample address line 2", 46 | "text_color": "#40E0D0" 47 | }, 48 | { 49 | "name": "address5[city]", 50 | "value": "sample address", 51 | "text_color": "#00FF00" 52 | }, 53 | { 54 | "name": "address5[state]", 55 | "value": "sample state", 56 | "text_color": "#2596be" 57 | }, 58 | { 59 | "name": "address5[postal]", 60 | "value": "3538148", 61 | "text_color": "#063970" 62 | }, 63 | { 64 | "name": "fakeSubmitButton", 65 | "value": "Submit" 66 | }, 67 | { 68 | "name": "submitButton", 69 | "value": "" 70 | } 71 | ] -------------------------------------------------------------------------------- /forms/template1.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/forms/template1.pdf -------------------------------------------------------------------------------- /grid/README.md: -------------------------------------------------------------------------------- 1 | # PDF Grid 2 | 3 | The example explains how to create grids in your PDF reports. The grid component can be used for creating different layouts in the report, or for creating tables. 4 | 5 | ## Examples 6 | 7 | - [pdf_grid_simple.go](pdf_grid_simple.go) The example showcases how you can use the power of the `creator` package to create a simple grid. 8 | - [pdf_grid_colspan.go](pdf_grid_colspan.go) The example showcases how to create grid with a cell occupying several columns. 9 | - [pdf_grid_rowspan.go](pdf_grid_rowspan.go) The example showcases how to create grid with a cell occupying several rows. 10 | - [pdf_grid_wrapping.go](pdf_grid_wrapping.go) The example showcases how to create grid wrapped across the pages. -------------------------------------------------------------------------------- /grid/logo.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/grid/logo.png -------------------------------------------------------------------------------- /grid/unipdf-grid-colspan.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/grid/unipdf-grid-colspan.pdf -------------------------------------------------------------------------------- /grid/unipdf-grid-rowspan.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/grid/unipdf-grid-rowspan.pdf -------------------------------------------------------------------------------- /grid/unipdf-grid-simple.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/grid/unipdf-grid-simple.pdf -------------------------------------------------------------------------------- /grid/unipdf-grid-wrapping.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/grid/unipdf-grid-wrapping.pdf -------------------------------------------------------------------------------- /hebrew-text/OpenSans-Regular.ttf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/hebrew-text/OpenSans-Regular.ttf -------------------------------------------------------------------------------- /hebrew-text/hebrew-text.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/hebrew-text/hebrew-text.pdf -------------------------------------------------------------------------------- /hebrew-text/pdf_write_hebrew.go: -------------------------------------------------------------------------------- 1 | /* 2 | * An example of writing Hebrew text 3 | * 4 | * Run as: go run pdf_write_hebrew.go 5 | */ 6 | 7 | package main 8 | 9 | import ( 10 | "os" 11 | 12 | "github.com/unidoc/unipdf/v4/common/license" 13 | "github.com/unidoc/unipdf/v4/creator" 14 | "github.com/unidoc/unipdf/v4/model" 15 | ) 16 | 17 | func init() { 18 | // Make sure to load your metered License API key prior to using the library. 19 | // If you need a key, you can sign up and create a free one at https://cloud.unidoc.io 20 | err := license.SetMeteredKey(os.Getenv(`UNIDOC_LICENSE_API_KEY`)) 21 | if err != nil { 22 | panic(err) 23 | } 24 | } 25 | 26 | func main() { 27 | font, err := model.NewCompositePdfFontFromTTFFile("./OpenSans-Regular.ttf") 28 | if err != nil { 29 | panic(err) 30 | } 31 | 32 | c := creator.New() 33 | c.SetPageSize(creator.PageSizeA5) 34 | 35 | hebrew := `שונה תוכל חפש מה, דת חפש היום כדור מיזמים, היא מה גרמנית מרצועת. לעריכת האנציקלופדיה או קרן, ספינות מדויקים או לוח. של סדר ניהול ויקיפדיה. של המלחמה פיסיקה קישורים עזה. אם טבלאות ממונרכיה כתב, שתפו ישראל ננקטת אם אתה, אם חפש בהשחתה פסיכולוגיה. בדף על ברית ריקוד חבריכם, אחד אל ריקוד להפוך אווירונאוטיקה.` 36 | p := c.NewStyledParagraph() 37 | style := &p.Append(hebrew).Style 38 | style.Font = font 39 | 40 | err = c.Draw(p) 41 | if err != nil { 42 | panic(err) 43 | } 44 | 45 | hebrew = `ב אחד כלליים חופשית, עוד אירועים ותשובות האנציקלופדיה על. אל אתה מושגי הבהרה ויקימדיה. ב עזה חשמל בלשנות, מה החלה.` 46 | p = c.NewStyledParagraph() 47 | style = &p.Append(hebrew).Style 48 | style.Font = font 49 | 50 | err = c.Draw(p) 51 | if err != nil { 52 | panic(err) 53 | } 54 | 55 | if err := c.WriteToFile("hebrew-text.pdf"); err != nil { 56 | panic(err) 57 | } 58 | } 59 | -------------------------------------------------------------------------------- /image/README.md: -------------------------------------------------------------------------------- 1 | # PDF Images 2 | 3 | UniPDF allows you to add, extract, list images in your PDF documents. Having the ability to play around with images allows for the creation of attractive PDF reports. 4 | 5 | ## Examples 6 | 7 | - [pdf_add_image_to_page.go](pdf_add_image_to_page.go) explains how to add an image in a PDF document 8 | - [pdf_images_to_pdf.go](pdf_images_to_pdf.go) explains how to add multiple images in a PDF document, one image per page. 9 | - [pdf_list_images.go](pdf_list_images.go) explains how to list images in a PDF file. Passes through each page, goes through the content stream and finds instances of both. XObject Images and inline images. Also handles images referred within XObject Form content streams. 10 | - Image extraction example can be found in [../extract](extract) example subfolder. 11 | -------------------------------------------------------------------------------- /image/pdf_images_to_pdf.go: -------------------------------------------------------------------------------- 1 | /* 2 | * Add images to a PDF file, one image per page. 3 | * 4 | * Run as: go run pdf_images_to_pdf.go output.pdf img1.jpg img2.jpg img3.png ... 5 | */ 6 | 7 | package main 8 | 9 | import ( 10 | "fmt" 11 | "os" 12 | 13 | "github.com/unidoc/unipdf/v4/common" 14 | "github.com/unidoc/unipdf/v4/common/license" 15 | "github.com/unidoc/unipdf/v4/creator" 16 | ) 17 | 18 | func init() { 19 | // Make sure to load your metered License API key prior to using the library. 20 | // If you need a key, you can sign up and create a free one at https://cloud.unidoc.io 21 | err := license.SetMeteredKey(os.Getenv(`UNIDOC_LICENSE_API_KEY`)) 22 | if err != nil { 23 | panic(err) 24 | } 25 | } 26 | 27 | func main() { 28 | if len(os.Args) < 3 { 29 | fmt.Printf("Usage: go run pdf_images_to_pdf.go output.pdf img1.jpg img2.jpg ...\n") 30 | os.Exit(1) 31 | } 32 | 33 | outputPath := os.Args[1] 34 | inputPaths := os.Args[2:len(os.Args)] 35 | 36 | err := imagesToPdf(inputPaths, outputPath) 37 | if err != nil { 38 | fmt.Printf("Error: %v\n", err) 39 | os.Exit(1) 40 | } 41 | 42 | fmt.Printf("Complete, see output file: %s\n", outputPath) 43 | } 44 | 45 | // Images to PDF. 46 | func imagesToPdf(inputPaths []string, outputPath string) error { 47 | c := creator.New() 48 | 49 | for _, imgPath := range inputPaths { 50 | common.Log.Debug("Image: %s", imgPath) 51 | 52 | img, err := c.NewImageFromFile(imgPath) 53 | if err != nil { 54 | common.Log.Debug("Error loading image: %v", err) 55 | return err 56 | } 57 | // Use page width of 612 points, and calculate the height proportionally based on the image. 58 | // Standard PPI is 72 points per inch, thus a width of 8.5" 59 | pageWidth := 612.0 60 | img.ScaleToWidth(pageWidth) 61 | 62 | pageHeight := pageWidth * img.Height() / img.Width() 63 | c.SetPageSize(creator.PageSize{pageWidth, pageHeight}) 64 | c.NewPage() 65 | img.SetPos(0, 0) 66 | _ = c.Draw(img) 67 | } 68 | 69 | err := c.WriteToFile(outputPath) 70 | return err 71 | } 72 | -------------------------------------------------------------------------------- /invoice/README.md: -------------------------------------------------------------------------------- 1 | # PDF Invoices 2 | 3 | Using UniPDF, you can create beautifully formatted automated invoices using code written in GoLang. This example contains two types of invoices, a simple one and an advanced invoice that has better formatting. 4 | 5 | ## Examples 6 | 7 | - [pdf_invoice_simple.go](pdf_invoice_simple.go) explains how to create a simple invoice 8 | - [pdf_invoice_advanced.go](pdf_invoice_advanced.go) explains how to create a better invoice that has customized formatting and coloring and a lot of other customized content. 9 | -------------------------------------------------------------------------------- /invoice/invoice_advanced.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/invoice/invoice_advanced.pdf -------------------------------------------------------------------------------- /invoice/invoice_simple.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/invoice/invoice_simple.pdf -------------------------------------------------------------------------------- /invoice/unidoc-logo.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/invoice/unidoc-logo.png -------------------------------------------------------------------------------- /jbig2/checkerboard-squares-black-white.jb2: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/jbig2/checkerboard-squares-black-white.jb2 -------------------------------------------------------------------------------- /jbig2/checkerboard-squares-black-white.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/jbig2/checkerboard-squares-black-white.jpg -------------------------------------------------------------------------------- /jbig2/document.jb2: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/jbig2/document.jb2 -------------------------------------------------------------------------------- /jbig2/jbig2_decompress.go: -------------------------------------------------------------------------------- 1 | /* 2 | * This example showcases the decompression of the jbig2 encoded document and storing into 3 | * commonly used jpg format. 4 | * 5 | * Syntax: go run jbig2_decompress.go img.jb2 6 | */ 7 | 8 | package main 9 | 10 | import ( 11 | "fmt" 12 | "image" 13 | "image/jpeg" 14 | "io/ioutil" 15 | "log" 16 | "os" 17 | 18 | "github.com/unidoc/unipdf/v4/common/license" 19 | "github.com/unidoc/unipdf/v4/core" 20 | ) 21 | 22 | func init() { 23 | // Make sure to load your metered License API key prior to using the library. 24 | // If you need a key, you can sign up and create a free one at https://cloud.unidoc.io 25 | err := license.SetMeteredKey(os.Getenv(`UNIDOC_LICENSE_API_KEY`)) 26 | if err != nil { 27 | panic(err) 28 | } 29 | } 30 | 31 | func main() { 32 | if len(os.Args) < 2 { 33 | fmt.Printf("Usage: go run jbig2_decompress.go img.jb2 ...\n") 34 | os.Exit(1) 35 | } 36 | inputImage := os.Args[1] 37 | 38 | f, err := os.Open(inputImage) 39 | if err != nil { 40 | log.Fatalf("Error: %v\n", err) 41 | } 42 | defer f.Close() 43 | 44 | data, err := ioutil.ReadAll(f) 45 | if err != nil { 46 | log.Fatalf("Error: %v\n", err) 47 | } 48 | 49 | // Create new JBIG2 Encoder/Decoder context. 50 | enc := &core.JBIG2Encoder{} 51 | 52 | // Decode all images from the 'data'. 53 | images, err := enc.DecodeImages(data) 54 | if err != nil { 55 | log.Fatalf("Error: %v\n", err) 56 | } 57 | 58 | // Store all images in the jpg format. 59 | saveImage := func(i int, img image.Image) { 60 | output := fmt.Sprintf("jbig2_decoded_%d.jpg", i+1) 61 | imgFile, err := os.Create(output) 62 | if err != nil { 63 | log.Fatalf("Error: %v\n", err) 64 | } 65 | defer imgFile.Close() 66 | 67 | err = jpeg.Encode(imgFile, img, &jpeg.Options{Quality: 80}) 68 | if err != nil { 69 | log.Fatalf("Error: %v\n", err) 70 | } 71 | fmt.Printf("Decompressed and stored the output to: '%s' with success.\n", output) 72 | } 73 | 74 | for i, img := range images { 75 | saveImage(i, img) 76 | } 77 | } 78 | -------------------------------------------------------------------------------- /jbig2/jbig2_globals.jb2: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/jbig2/jbig2_globals.jb2 -------------------------------------------------------------------------------- /license/README.md: -------------------------------------------------------------------------------- 1 | # UniPDF License Loading. 2 | 3 | The examples here illustrate how to work with UniPDF license codes and keys. 4 | There are two types of licenses. 5 | 6 | ## Offline License 7 | Offline licenses are cryptography based and contain full signed information that is verified based on signatures without making any outbound connections, 8 | hence the name "offline". This kind of license is suitable for users deploying OEM products to their customers or where there are strict restrictions 9 | on outbound connections due to firewalls and/or compliance requirements. 10 | 11 | ## Metered License (API keys) 12 | The metered license is the most convenient way to get started with UniDoc products and the Free tier enables a powerful way to get started for free. 13 | Anyone can get a free metered API key by signing up on http://cloud.unidoc.io/ 14 | 15 | > Metered License (API keys) requires read-write permission to $HOME directory for storing API Keys usage, 16 | > however you can set `HOME` environment to another directory if you wish. 17 | 18 | ## Metered License API Key Usage Logs 19 | By setting the `SetMeteredKeyUsageLogVerboseMode` to true using `license.SetMeteredKeyUsageLogVerboseMode(true)` you can see full information on the credit usage status of each logs of each document as follows. 20 | ![alt text](data/image.png) 21 | 22 | ## Examples 23 | 24 | - [unipdf_license_loading_metered.go](unipdf_license_loading_metered.go) Demonstrates how to load the Metered API license key and how to print out relevant information. 25 | - [unipdf_offline_license_info.go](unipdf_offline_license_info.go) Demonstrates how to print out information about the license after loading an offline license key. 26 | - [unipdf_license_usage_log.go](unipdf_license_usage_log.go) Demonstrates how to enable the license key verbose mode logging. -------------------------------------------------------------------------------- /license/unipdf_license_loading_metered.go: -------------------------------------------------------------------------------- 1 | /* 2 | * unipdf_license_loading_metered.go: 3 | * Illustrates how to load a metered license API key. 4 | * Free api keys can be obtained at: https://cloud.unidoc.io 5 | * 6 | * Run as: go run unipdf_license_loading_metered.go 7 | */ 8 | 9 | package main 10 | 11 | import ( 12 | "fmt" 13 | 14 | "github.com/unidoc/unipdf/v4/common/license" 15 | ) 16 | 17 | func init() { 18 | // To get your free API key for metered license, sign up on: https://cloud.unidoc.io 19 | // Make sure to be using UniPDF v3.19.1 or newer for Metered API key support. 20 | err := license.SetMeteredKey(`my metered api key goes here`) 21 | if err != nil { 22 | fmt.Printf("ERROR: Failed to set metered key: %v\n", err) 23 | fmt.Printf("Make sure to get a valid key from https://cloud.unidoc.io\n") 24 | panic(err) 25 | } 26 | } 27 | 28 | func main() { 29 | lk := license.GetLicenseKey() 30 | if lk == nil { 31 | fmt.Printf("Failed retrieving license key") 32 | return 33 | } 34 | fmt.Printf("License: %s\n", lk.ToString()) 35 | 36 | // GetMeteredState freshly checks the state, contacting the licensing server. 37 | state, err := license.GetMeteredState() 38 | if err != nil { 39 | fmt.Printf("ERROR getting metered state: %+v\n", err) 40 | panic(err) 41 | } 42 | fmt.Printf("State: %+v\n", state) 43 | if state.OK { 44 | fmt.Printf("State is OK\n") 45 | } else { 46 | fmt.Printf("State is not OK\n") 47 | } 48 | fmt.Printf("Credits: %v\n", state.Credits) 49 | fmt.Printf("Used credits: %v\n", state.Used) 50 | } 51 | -------------------------------------------------------------------------------- /license/unipdf_license_loading_offline.go: -------------------------------------------------------------------------------- 1 | /* 2 | * unipdf_license_loading_offline.go: 3 | * Illustrates how to load an offline license key. 4 | * Offline keys can be purchased at https://www.unidoc.io 5 | * 6 | * Run as: go run unipdf_license_loading_offline.go 7 | */ 8 | 9 | package main 10 | 11 | import ( 12 | "fmt" 13 | 14 | "github.com/unidoc/unipdf/v4/common/license" 15 | ) 16 | 17 | // Example of an offline license key. 18 | const offlineLicenseKey = ` 19 | -----BEGIN UNIDOC LICENSE KEY----- 20 | contents here. 21 | -----END UNIDOC LICENSE KEY----- 22 | ` 23 | 24 | func init() { 25 | // The customer name needs to match the entry that is embedded in the signed key. 26 | customerName := `My Company` 27 | 28 | // Good to load the license key in `init`. Needs to be done prior to using the library, otherwise operations 29 | // will result in an error. 30 | err := license.SetLicenseKey(offlineLicenseKey, customerName) 31 | if err != nil { 32 | panic(err) 33 | } 34 | } 35 | 36 | func main() { 37 | lk := license.GetLicenseKey() 38 | if lk == nil { 39 | fmt.Printf("Failed retrieving license key") 40 | return 41 | } 42 | fmt.Printf("License: %s\n", lk.ToString()) 43 | } 44 | -------------------------------------------------------------------------------- /license/unipdf_offline_license_info.go: -------------------------------------------------------------------------------- 1 | /* 2 | * Check UniPDF License key info for an offline license key. 3 | * 4 | * Run as: go run unipdf_offline_license_info.go 5 | */ 6 | 7 | package main 8 | 9 | import ( 10 | "fmt" 11 | 12 | "github.com/unidoc/unipdf/v4/common/license" 13 | ) 14 | 15 | const offlineLicenseKey = ` 16 | -----BEGIN UNIDOC LICENSE KEY----- 17 | Key contents here. 18 | -----END UNIDOC LICENSE KEY----- 19 | ` 20 | 21 | func init() { 22 | // Load the offline license key. 23 | err := license.SetLicenseKey(offlineLicenseKey, `Company Name`) 24 | if err != nil { 25 | panic(err) 26 | } 27 | } 28 | 29 | func main() { 30 | lk := license.GetLicenseKey() 31 | if lk == nil { 32 | fmt.Printf("Failed retrieving license key") 33 | 34 | return 35 | } 36 | 37 | fmt.Printf("%s\n", lk.ToString()) 38 | } 39 | -------------------------------------------------------------------------------- /metadata/README.md: -------------------------------------------------------------------------------- 1 | # Metadata 2 | 3 | ## Examples 4 | 5 | - pdf_metadata_get_docinfo.go outputs the document information dictionary information 6 | - pdf_metadata_get_xml.go outputs metadata streams XML 7 | - pdf_metadata_set_docinfo.go showcase how to set a default and custom metadata information 8 | 9 | ## Background 10 | According to section 14.3 Metadata (p. 556 in PDF32000_2008) metadata can be stores in two ways: 11 | 1. In metadata streams associated with the document or a component of the document (newer, preferred approach) 12 | 2. In a document information dictionary associated with the document (old way) 13 | 14 | The document information dictionary has fixed field such as: 15 | - Title 16 | The document’s title. 17 | 18 | - Author 19 | The name of the person who created the document. 20 | 21 | - Subject 22 | The subject of the document. 23 | 24 | - Keywords 25 | Keywords associated with the document. 26 | 27 | - Creator 28 | If the document was converted to PDF from another format, the name of the conforming product that created the original document from which it was converted. 29 | 30 | - Producer 31 | If the document was converted to PDF from another format, the name of the conforming product that converted it to PDF. 32 | 33 | - CreationDate 34 | The date and time the document was created, in human- readable form. 35 | 36 | - ModDate 37 | The date and time the document was most recently modified, in human-readable form. 38 | 39 | - Trapped 40 | A name object indicating whether the document has been modified to include trapping information. 41 | 42 | 43 | Aside from the default fields mentioned above, the metadata dictionary could contain other keys that hold custom string metadata. 44 | -------------------------------------------------------------------------------- /multi-font-encoder/fonts/Batang.ttf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/multi-font-encoder/fonts/Batang.ttf -------------------------------------------------------------------------------- /multi-font-encoder/fonts/NotoSerifEthiopic_Condensed-Black.ttf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/multi-font-encoder/fonts/NotoSerifEthiopic_Condensed-Black.ttf -------------------------------------------------------------------------------- /multi-font-encoder/fonts/OpenSans-Regular.ttf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/multi-font-encoder/fonts/OpenSans-Regular.ttf -------------------------------------------------------------------------------- /multi-font-encoder/fonts/PCSB Hebrew Regular.ttf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/multi-font-encoder/fonts/PCSB Hebrew Regular.ttf -------------------------------------------------------------------------------- /multi-font-encoder/multiple-language-text-using-multi-font.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/multi-font-encoder/multiple-language-text-using-multi-font.pdf -------------------------------------------------------------------------------- /multi-font-encoder/use_composite_TTFPdfFonts.go: -------------------------------------------------------------------------------- 1 | /* 2 | * renders a multi language text using a multi font encoder. 3 | * 4 | * Run as: go run render_multi_language_text.go 5 | */ 6 | package main 7 | 8 | import ( 9 | "os" 10 | 11 | "github.com/unidoc/unipdf/v4/common/license" 12 | "github.com/unidoc/unipdf/v4/creator" 13 | "github.com/unidoc/unipdf/v4/model" 14 | ) 15 | 16 | func init() { 17 | // Make sure to load your metered License API key prior to using the library. 18 | // If you need a key, you can sign up and create a free one at https://cloud.unidoc.io 19 | err := license.SetMeteredKey(os.Getenv(`UNIDOC_LICENSE_API_KEY`)) 20 | if err != nil { 21 | panic(err) 22 | } 23 | } 24 | 25 | func main() { 26 | inputText := "Sample text 示例文本 טקסט לדוגמה ጽሑፍ ኣብነት 샘플 텍스트" 27 | fonts := getFonts([]string{ 28 | "./fonts/PCSB Hebrew Regular.ttf", 29 | "./fonts/NotoSerifEthiopic_Condensed-Black.ttf", 30 | "./fonts/OpenSans-Regular.ttf", 31 | "./fonts/Batang.ttf", 32 | }) 33 | 34 | c := creator.New() 35 | c.SetPageSize(creator.PageSizeA5) 36 | p := c.NewStyledParagraph() 37 | style := &p.Append(inputText).Style 38 | style.MultiFont = model.NewMultipleFontEncoder(fonts) 39 | 40 | err := c.Draw(p) 41 | if err != nil { 42 | panic(err) 43 | } 44 | if err := c.WriteToFile("multiple-language-text-multi-font.pdf"); err != nil { 45 | panic(err) 46 | } 47 | } 48 | 49 | // getFonts returns list of *model.PdfFont from list of paths to fonts files. 50 | func getFonts(fontPaths []string) []*model.PdfFont { 51 | fonts := []*model.PdfFont{} 52 | for _, path := range fontPaths { 53 | font, err := model.NewCompositePdfFontFromTTFFile(path) 54 | if err != nil { 55 | panic(err) 56 | } 57 | fonts = append(fonts, font) 58 | } 59 | 60 | return fonts 61 | } 62 | -------------------------------------------------------------------------------- /outlines/README.md: -------------------------------------------------------------------------------- 1 | # PDF Outlines 2 | 3 | The example explains how to work with outlines (bookmarks) using UniPDF. 4 | 5 | ## Examples 6 | 7 | - [pdf_get_outlines.go](pdf_get_outlines.go) explains how to retrieve outlines (bookmarks) from a PDF file and prints them out in JSON format. Note: The JSON output can be used with the related pdf_set_outlines.go example to apply outlines to a PDF file. 8 | - [pdf_set_outlines.go](pdf_set_outlines.go) explains how to apply outlines to a PDF file. The files are read from a JSON formatted file, which can be created via pdf_get_outlines which outputs outlines for an input PDF file in the JSON format. -------------------------------------------------------------------------------- /outlines/pdf_create_outlines.go: -------------------------------------------------------------------------------- 1 | /* 2 | * Creates outlines for a PDF file. 3 | * 4 | * Run as: go run pdf_create_outlines.go input.pdf output.pdf 5 | */ 6 | 7 | package main 8 | 9 | import ( 10 | "fmt" 11 | "os" 12 | 13 | "github.com/unidoc/unipdf/v4/common/license" 14 | "github.com/unidoc/unipdf/v4/model" 15 | ) 16 | 17 | func init() { 18 | // Make sure to load your metered License API key prior to using the library. 19 | // If you need a key, you can sign up and create a free one at https://cloud.unidoc.io 20 | err := license.SetMeteredKey(os.Getenv(`UNIDOC_LICENSE_API_KEY`)) 21 | if err != nil { 22 | panic(err) 23 | } 24 | } 25 | 26 | func main() { 27 | if len(os.Args) < 3 { 28 | fmt.Printf("Usage: go run pdf_create_outlines.go input.pdf output.pdf\n") 29 | os.Exit(1) 30 | } 31 | 32 | inputPath := os.Args[1] 33 | outPath := os.Args[2] 34 | 35 | fmt.Printf("Input file: %s\n", inputPath) 36 | fmt.Printf("Output file: %s\n", outPath) 37 | 38 | pdfReader, f, err := model.NewPdfReaderFromFile(inputPath, nil) 39 | if err != nil { 40 | fmt.Printf("Error: %v\n", err) 41 | os.Exit(1) 42 | } 43 | defer f.Close() 44 | 45 | // Check number of PDF pages. 46 | numPages, err := pdfReader.GetNumPages() 47 | if err != nil { 48 | fmt.Printf("Error: %v\n", err) 49 | os.Exit(1) 50 | } 51 | 52 | if numPages < 3 { 53 | fmt.Printf("Too short PDF file. At least 3 pages are needed for this outline example.") 54 | os.Exit(1) 55 | } 56 | 57 | // Don't copy document outlines. 58 | opt := &model.ReaderToWriterOpts{ 59 | SkipOutlines: true, 60 | } 61 | 62 | // Generate a PdfWriter instance from existing PdfReader. 63 | pdfWriter, err := pdfReader.ToWriter(opt) 64 | if err != nil { 65 | fmt.Printf("Error: %v\n", err) 66 | os.Exit(1) 67 | } 68 | 69 | // Add the new document outlines. 70 | outline := model.NewOutline() 71 | for i := 0; i < 3; i++ { 72 | page, _ := pdfReader.GetPage(i + 1) 73 | _, y, _ := page.Size() 74 | // Create outline for the top left corner of each page. Note that PDF y coordinate goes from bottom to top. 75 | outline.Add(model.NewOutlineItem(fmt.Sprintf("page%d", i+1), model.NewOutlineDest(int64(i), 0, y))) 76 | } 77 | 78 | pdfWriter.AddOutlineTree(outline.ToOutlineTree()) 79 | 80 | // Write output file. 81 | err = pdfWriter.WriteToFile(outPath) 82 | if err != nil { 83 | fmt.Printf("Error: %v\n", err) 84 | os.Exit(1) 85 | } 86 | } 87 | -------------------------------------------------------------------------------- /outlines/pdf_get_outlines.go: -------------------------------------------------------------------------------- 1 | /* 2 | * Retrieves outlines (bookmarks) from a PDF file and prints out in JSON format. 3 | * Note: The JSON output can be used with the related pdf_set_outlines.go example to 4 | * apply outlines to a PDF file. 5 | * 6 | * Run as: go run pdf_get_outlines.go input.pdf > outlines.json 7 | */ 8 | 9 | package main 10 | 11 | import ( 12 | "encoding/json" 13 | "fmt" 14 | "os" 15 | 16 | "github.com/unidoc/unipdf/v4/common/license" 17 | "github.com/unidoc/unipdf/v4/model" 18 | ) 19 | 20 | func init() { 21 | // Make sure to load your metered License API key prior to using the library. 22 | // If you need a key, you can sign up and create a free one at https://cloud.unidoc.io 23 | err := license.SetMeteredKey(os.Getenv(`UNIDOC_LICENSE_API_KEY`)) 24 | if err != nil { 25 | panic(err) 26 | } 27 | } 28 | 29 | func main() { 30 | if len(os.Args) < 2 { 31 | fmt.Printf("Usage: go run pdf_get_outlines.go input.pdf\n") 32 | os.Exit(1) 33 | } 34 | 35 | inputPath := os.Args[1] 36 | 37 | fmt.Printf("Input file: %s\n", inputPath) 38 | 39 | err := getOutlines(inputPath) 40 | if err != nil { 41 | fmt.Printf("Error: %v\n", err) 42 | os.Exit(1) 43 | } 44 | } 45 | 46 | func getOutlines(inputPath string) error { 47 | pdfReader, f, err := model.NewPdfReaderFromFile(inputPath, nil) 48 | if err != nil { 49 | return err 50 | } 51 | defer f.Close() 52 | 53 | outlines, err := pdfReader.GetOutlines() 54 | if err != nil { 55 | return err 56 | } 57 | 58 | data, err := json.MarshalIndent(outlines, "", " ") 59 | if err != nil { 60 | return err 61 | } 62 | fmt.Printf("%s\n", data) 63 | 64 | return nil 65 | } 66 | -------------------------------------------------------------------------------- /outlines/pdf_set_outlines.go: -------------------------------------------------------------------------------- 1 | /* 2 | * Applies outlines to a PDF file. The files are read from a JSON formatted file, 3 | * which can be created via pdf_get_outlines which outputs outlines for an input PDF file 4 | * in the JSON format. 5 | * 6 | * Run as: go run pdf_set_outlines.go input.pdf outlines.json output.pdf 7 | */ 8 | 9 | package main 10 | 11 | import ( 12 | "encoding/json" 13 | "fmt" 14 | "io/ioutil" 15 | "os" 16 | 17 | "github.com/unidoc/unipdf/v4/common/license" 18 | "github.com/unidoc/unipdf/v4/model" 19 | ) 20 | 21 | func init() { 22 | // Make sure to load your metered License API key prior to using the library. 23 | // If you need a key, you can sign up and create a free one at https://cloud.unidoc.io 24 | err := license.SetMeteredKey(os.Getenv(`UNIDOC_LICENSE_API_KEY`)) 25 | if err != nil { 26 | panic(err) 27 | } 28 | } 29 | 30 | func main() { 31 | if len(os.Args) < 4 { 32 | fmt.Printf("Usage: go run pdf_set_outlines.go input.pdf outlines.json output.pdf\n") 33 | os.Exit(1) 34 | } 35 | 36 | inputPath := os.Args[1] 37 | outlinesPath := os.Args[2] 38 | outPath := os.Args[3] 39 | 40 | fmt.Printf("Input file: %s\n", inputPath) 41 | fmt.Printf("Outlines file (JSON): %s\n", outlinesPath) 42 | fmt.Printf("Output file: %s\n", outPath) 43 | 44 | err := applyOutlines(inputPath, outlinesPath, outPath) 45 | if err != nil { 46 | fmt.Printf("Error: %v\n", err) 47 | os.Exit(1) 48 | } 49 | } 50 | 51 | func applyOutlines(inputPath, outlinesPath, outPath string) error { 52 | data, err := ioutil.ReadFile(outlinesPath) 53 | if err != nil { 54 | return err 55 | } 56 | 57 | var newOutlines model.Outline 58 | err = json.Unmarshal(data, &newOutlines) 59 | if err != nil { 60 | return err 61 | } 62 | 63 | pdfReader, f, err := model.NewPdfReaderFromFile(inputPath, nil) 64 | if err != nil { 65 | return err 66 | } 67 | defer f.Close() 68 | 69 | // Don't copy document outlines. 70 | opt := &model.ReaderToWriterOpts{ 71 | SkipOutlines: true, 72 | } 73 | 74 | // Generate a PdfWriter instance from existing PdfReader. 75 | pdfWriter, err := pdfReader.ToWriter(opt) 76 | if err != nil { 77 | return err 78 | } 79 | 80 | // Add the new document outline. 81 | pdfWriter.AddOutlineTree(newOutlines.ToOutlineTree()) 82 | 83 | return pdfWriter.WriteToFile(outPath) 84 | } 85 | -------------------------------------------------------------------------------- /pages/README.md: -------------------------------------------------------------------------------- 1 | # PDF Page Manipulation 2 | 3 | The example explains how to work with and manipulate PDF pages using UniPDF library. You can perform a number of manipulations such as crop, merge, rotate and many more. 4 | 5 | ## Examples 6 | 7 | - [pdf_4up.go](pdf_4up.go) The example outputs multiple pages (4) per page to an output PDF from an input PDF. Showcases page templating by loading pages as Blocks and manipulating with the creator package. 8 | - [pdf_crop.go](pdf_crop.go) The example Crop pages in a PDF file. Crops the view to a certain percentage of the original. The percentage specifies the trim-off percentage, both widthwise and heightwise. 9 | - [pdf_merge.go](pdf_merge.go) The example highlights basic merging of PDF files. Simply loads all pages for each file and writes to the output file. 10 | - [pdf_merge_advanced.go](pdf_merge_advanced.go) The example merges PDF files, including form field data (AcroForms). For a more basic merging of PDF page contents, see pdf_merge.go. 11 | - [pdf_page_info.go](pdf_page_info.go) The example prints PDF page info: Mediabox size and other parameters. If [page num] is not specified prints out info for all pages. 12 | - [pdf_page_rotate.go](pdf_page_rotate.go) The example rotate certain page in a PDF file. Degrees needs to be a multiple of 90. 13 | - [pdf_page_side_note.go](pdf_page_side_note.go) The example showcases how to add information on page's margin left or right. 14 | - [pdf_rotate_flatten.go](pdf_rotate_flatten.go) The example rotates the contents of a PDF file in accordance with each page's Rotate entry and then sets Rotate to 0. That is, flattens the rotation. Will look the same in viewer, but when working with the PDF, the upper left corner will be the origin (in unidoc coordinate system). 15 | - [pdf_rotate.go](pdf_rotate.go) The example rotate pages in a PDF file using global flag instead of rotating each page one by one. Degrees needs to be a multiple of 90. 16 | - [pdf_split.go](pdf_split.go) The example highlights basic PDF split example: Splitting by page range. 17 | - [pdf_split_advanced.go](pdf_split_advanced.go) The example highlights advanced PDF split example: Takes into account optional content - OCProperties (rarely used). 18 | - [pdf_append_contents.go](pdf_append_contents.go) The example for append PDF Files contents into single PDF file. 19 | -------------------------------------------------------------------------------- /pages/pdf_rotate.go: -------------------------------------------------------------------------------- 1 | /* 2 | * Rotate pages in a PDF file using global flag instead of 3 | * rotating each page one by one. 4 | * Degrees needs to be a multiple of 90. 5 | * 6 | * Run as: go run pdf_rotate.go input.pdf output.pdf 7 | * The angle is specified in degrees. 8 | */ 9 | 10 | package main 11 | 12 | import ( 13 | "fmt" 14 | "os" 15 | "strconv" 16 | 17 | "github.com/unidoc/unipdf/v4/common/license" 18 | "github.com/unidoc/unipdf/v4/model" 19 | ) 20 | 21 | func init() { 22 | // Make sure to load your metered License API key prior to using the library. 23 | // If you need a key, you can sign up and create a free one at https://cloud.unidoc.io 24 | err := license.SetMeteredKey(os.Getenv(`UNIDOC_LICENSE_API_KEY`)) 25 | if err != nil { 26 | panic(err) 27 | } 28 | } 29 | 30 | func main() { 31 | if len(os.Args) < 4 { 32 | fmt.Printf("Usage: go run pdf_rotate.go input.pdf output.pdf\n") 33 | os.Exit(1) 34 | } 35 | 36 | inputPath := os.Args[1] 37 | outputPath := os.Args[3] 38 | 39 | degrees, err := strconv.ParseInt(os.Args[2], 10, 64) 40 | if err != nil { 41 | fmt.Printf("Invalid degrees: %v\n", err) 42 | os.Exit(1) 43 | } 44 | if degrees%90 != 0 { 45 | fmt.Printf("Degrees needs to be a multiple of 90\n") 46 | os.Exit(1) 47 | } 48 | 49 | err = rotatePdf(inputPath, degrees, outputPath) 50 | if err != nil { 51 | fmt.Printf("Error: %v\n", err) 52 | os.Exit(1) 53 | } 54 | 55 | fmt.Printf("Complete, see output file: %s\n", outputPath) 56 | } 57 | 58 | // Rotate all pages by degrees. 59 | func rotatePdf(inputPath string, degrees int64, outputPath string) error { 60 | pdfReader, f, err := model.NewPdfReaderFromFile(inputPath, nil) 61 | if err != nil { 62 | return err 63 | } 64 | defer f.Close() 65 | 66 | pdfWriter, err := pdfReader.ToWriter(&model.ReaderToWriterOpts{}) 67 | if err != nil { 68 | return nil 69 | } 70 | 71 | // Rotate all page degrees. 72 | err = pdfWriter.SetRotation(degrees) 73 | if err != nil { 74 | return nil 75 | } 76 | 77 | pdfWriter.WriteToFile(outputPath) 78 | 79 | return err 80 | } 81 | -------------------------------------------------------------------------------- /pdfa/pdf_apply_standard.go: -------------------------------------------------------------------------------- 1 | /* 2 | * PDF optimization (compression) example. 3 | * 4 | * Run as: go run pdf_apply_standard.go 5 | */ 6 | 7 | package main 8 | 9 | import ( 10 | "fmt" 11 | "log" 12 | "os" 13 | "time" 14 | 15 | "github.com/unidoc/unipdf/v4/common/license" 16 | "github.com/unidoc/unipdf/v4/model" 17 | "github.com/unidoc/unipdf/v4/model/pdfa" 18 | ) 19 | 20 | func init() { 21 | // Make sure to load your metered License API key prior to using the library. 22 | // If you need a key, you can sign up and create a free one at https://cloud.unidoc.io 23 | err := license.SetMeteredKey(os.Getenv(`UNIDOC_LICENSE_API_KEY`)) 24 | if err != nil { 25 | panic(err) 26 | } 27 | } 28 | 29 | func main() { 30 | args := os.Args 31 | if len(args) < 3 { 32 | fmt.Printf("Usage: %s INPUT_PDF_PATH OUTPUT_PDF_PATH", os.Args[0]) 33 | return 34 | } 35 | inputPath := args[1] 36 | outputPath := args[2] 37 | 38 | // Initialize starting time. 39 | start := time.Now() 40 | 41 | // Create reader. 42 | reader, file, err := model.NewPdfReaderFromFile(inputPath, nil) 43 | if err != nil { 44 | log.Fatalf("Fail: %v\n", err) 45 | } 46 | defer file.Close() 47 | 48 | // Generate a PDFWriter from PDFReader. 49 | pdfWriter, err := reader.ToWriter(nil) 50 | if err != nil { 51 | log.Fatalf("Fail: %v\n", err) 52 | } 53 | 54 | // Apply standard PDF/A-1B. 55 | pdfWriter.ApplyStandard(pdfa.NewProfile1B(nil)) 56 | 57 | // Create output file. 58 | err = pdfWriter.WriteToFile(outputPath) 59 | if err != nil { 60 | log.Fatalf("Fail: %v\n", err) 61 | } 62 | 63 | duration := float64(time.Since(start)) / float64(time.Millisecond) 64 | fmt.Printf("Processing time: %.2f ms\n", duration) 65 | } 66 | -------------------------------------------------------------------------------- /pdfa/pdf_validate_standard.go: -------------------------------------------------------------------------------- 1 | /* 2 | * PDF optimization (compression) example. 3 | * 4 | * Run as: go run pdfa_validate_standard.go 5 | */ 6 | 7 | package main 8 | 9 | import ( 10 | "fmt" 11 | "log" 12 | "os" 13 | "time" 14 | 15 | "github.com/unidoc/unipdf/v4/common/license" 16 | "github.com/unidoc/unipdf/v4/model" 17 | "github.com/unidoc/unipdf/v4/model/pdfa" 18 | ) 19 | 20 | func init() { 21 | // Make sure to load your metered License API key prior to using the library. 22 | // If you need a key, you can sign up and create a free one at https://cloud.unidoc.io 23 | err := license.SetMeteredKey(os.Getenv(`UNIDOC_LICENSE_API_KEY`)) 24 | if err != nil { 25 | panic(err) 26 | } 27 | } 28 | 29 | func main() { 30 | args := os.Args 31 | if len(args) < 2 { 32 | fmt.Printf("Usage: %s INPUT_PDF_PATH", os.Args[0]) 33 | return 34 | } 35 | inputPath := args[1] 36 | 37 | // Initialize starting time. 38 | start := time.Now() 39 | 40 | // Create reader. 41 | inputFile, err := os.Open(inputPath) 42 | if err != nil { 43 | log.Fatalf("Fail: %v\n", err) 44 | } 45 | defer inputFile.Close() 46 | 47 | detailedReader, err := model.NewCompliancePdfReader(inputFile) 48 | if err != nil { 49 | log.Fatalf("Fail: %v\n", err) 50 | } 51 | 52 | // Apply standard PDF/A-1B. 53 | standards := []model.StandardImplementer{ 54 | pdfa.NewProfile1A(nil), 55 | pdfa.NewProfile1B(nil), 56 | } 57 | 58 | // Iterate over input standards and check if the document passes its requirements. 59 | for _, standard := range standards { 60 | if err = standard.ValidateStandard(detailedReader); err != nil { 61 | fmt.Printf("Input document didn't pass the standard: %s - %v\n", standard.StandardName(), err) 62 | } 63 | } 64 | 65 | duration := float64(time.Since(start)) / float64(time.Millisecond) 66 | fmt.Printf("Processing time: %.2f ms\n", duration) 67 | } 68 | -------------------------------------------------------------------------------- /pdfa/pdfa2_apply_standard.go: -------------------------------------------------------------------------------- 1 | /* 2 | * PDF/A-2 optimization (compression) example. 3 | * 4 | * Run as: go run pdfa2_apply_standard.go 5 | */ 6 | 7 | package main 8 | 9 | import ( 10 | "fmt" 11 | "log" 12 | "os" 13 | "time" 14 | 15 | "github.com/unidoc/unipdf/v4/common/license" 16 | "github.com/unidoc/unipdf/v4/model" 17 | "github.com/unidoc/unipdf/v4/model/pdfa" 18 | ) 19 | 20 | func init() { 21 | // Make sure to load your metered License API key prior to using the library. 22 | // If you need a key, you can sign up and create a free one at https://cloud.unidoc.io 23 | err := license.SetMeteredKey(os.Getenv(`UNIDOC_LICENSE_API_KEY`)) 24 | if err != nil { 25 | panic(err) 26 | } 27 | } 28 | 29 | func main() { 30 | args := os.Args 31 | if len(args) < 3 { 32 | fmt.Printf("Usage: %s INPUT_PDF_PATH OUTPUT_PDF_PATH", os.Args[0]) 33 | return 34 | } 35 | inputPath := args[1] 36 | outputPath := args[2] 37 | 38 | // Initialize starting time. 39 | start := time.Now() 40 | 41 | // Create reader. 42 | reader, file, err := model.NewPdfReaderFromFile(inputPath, nil) 43 | if err != nil { 44 | log.Fatalf("Fail: %v\n", err) 45 | } 46 | defer file.Close() 47 | 48 | // Generate a PDFWriter from PDFReader. 49 | pdfWriter, err := reader.ToWriter(nil) 50 | if err != nil { 51 | log.Fatalf("Fail: %v\n", err) 52 | } 53 | 54 | // Apply standard PDF/A-2B. 55 | pdfWriter.ApplyStandard(pdfa.NewProfile2B(nil)) 56 | 57 | // Create output file. 58 | err = pdfWriter.WriteToFile(outputPath) 59 | if err != nil { 60 | log.Fatalf("Fail: %v\n", err) 61 | } 62 | 63 | duration := float64(time.Since(start)) / float64(time.Millisecond) 64 | fmt.Printf("Processing time: %.2f ms\n", duration) 65 | } 66 | -------------------------------------------------------------------------------- /pdfa/pdfa2_validate_standard.go: -------------------------------------------------------------------------------- 1 | /* 2 | * PDF/A-2 optimization (compression) example. 3 | * 4 | * Run as: go run pdfa2_validate_standard.go 5 | */ 6 | 7 | package main 8 | 9 | import ( 10 | "fmt" 11 | "log" 12 | "os" 13 | "time" 14 | 15 | "github.com/unidoc/unipdf/v4/common/license" 16 | "github.com/unidoc/unipdf/v4/model" 17 | "github.com/unidoc/unipdf/v4/model/pdfa" 18 | ) 19 | 20 | func init() { 21 | // Make sure to load your metered License API key prior to using the library. 22 | // If you need a key, you can sign up and create a free one at https://cloud.unidoc.io 23 | err := license.SetMeteredKey(os.Getenv(`UNIDOC_LICENSE_API_KEY`)) 24 | if err != nil { 25 | panic(err) 26 | } 27 | } 28 | 29 | func main() { 30 | args := os.Args 31 | if len(args) < 2 { 32 | fmt.Printf("Usage: %s INPUT_PDF_PATH", os.Args[0]) 33 | return 34 | } 35 | inputPath := args[1] 36 | 37 | // Initialize starting time. 38 | start := time.Now() 39 | 40 | // Create reader. 41 | inputFile, err := os.Open(inputPath) 42 | if err != nil { 43 | log.Fatalf("Fail: %v\n", err) 44 | } 45 | defer inputFile.Close() 46 | 47 | detailedReader, err := model.NewCompliancePdfReader(inputFile) 48 | if err != nil { 49 | log.Fatalf("Fail: %v\n", err) 50 | } 51 | 52 | // Apply standard PDF/A-2. 53 | standards := []model.StandardImplementer{ 54 | pdfa.NewProfile2A(nil), 55 | pdfa.NewProfile2B(nil), 56 | pdfa.NewProfile2U(nil), 57 | } 58 | 59 | // Iterate over input standards and check if the document passes its requirements. 60 | for _, standard := range standards { 61 | if err = standard.ValidateStandard(detailedReader); err != nil { 62 | fmt.Printf("Input document didn't pass the standard: %s - %v\n", standard.StandardName(), err) 63 | } 64 | } 65 | 66 | duration := float64(time.Since(start)) / float64(time.Millisecond) 67 | fmt.Printf("Processing time: %.2f ms\n", duration) 68 | } 69 | -------------------------------------------------------------------------------- /pdfa/pdfa3_apply_standard.go: -------------------------------------------------------------------------------- 1 | /* 2 | * PDF/A-3 optimization (compression) example. 3 | * 4 | * Run as: go run pdfa3_apply_standard.go 5 | */ 6 | 7 | package main 8 | 9 | import ( 10 | "fmt" 11 | "log" 12 | "os" 13 | "time" 14 | 15 | "github.com/unidoc/unipdf/v4/common/license" 16 | "github.com/unidoc/unipdf/v4/model" 17 | "github.com/unidoc/unipdf/v4/model/pdfa" 18 | ) 19 | 20 | func init() { 21 | // Make sure to load your metered License API key prior to using the library. 22 | // If you need a key, you can sign up and create a free one at https://cloud.unidoc.io 23 | err := license.SetMeteredKey(os.Getenv(`UNIDOC_LICENSE_API_KEY`)) 24 | if err != nil { 25 | panic(err) 26 | } 27 | } 28 | 29 | func main() { 30 | args := os.Args 31 | if len(args) < 3 { 32 | fmt.Printf("Usage: %s INPUT_PDF_PATH OUTPUT_PDF_PATH", os.Args[0]) 33 | return 34 | } 35 | inputPath := args[1] 36 | outputPath := args[2] 37 | 38 | // Initialize starting time. 39 | start := time.Now() 40 | 41 | // Create reader. 42 | reader, file, err := model.NewPdfReaderFromFile(inputPath, nil) 43 | if err != nil { 44 | log.Fatalf("Fail: %v\n", err) 45 | } 46 | defer file.Close() 47 | 48 | // Generate a PDFWriter from PDFReader. 49 | pdfWriter, err := reader.ToWriter(nil) 50 | if err != nil { 51 | log.Fatalf("Fail: %v\n", err) 52 | } 53 | 54 | // Apply standard PDF/A-3B. 55 | pdfWriter.ApplyStandard(pdfa.NewProfile3B(nil)) 56 | 57 | // Create output file. 58 | err = pdfWriter.WriteToFile(outputPath) 59 | if err != nil { 60 | log.Fatalf("Fail: %v\n", err) 61 | } 62 | 63 | duration := float64(time.Since(start)) / float64(time.Millisecond) 64 | fmt.Printf("Processing time: %.2f ms\n", duration) 65 | } 66 | -------------------------------------------------------------------------------- /pdfa/pdfa3_validate_standard.go: -------------------------------------------------------------------------------- 1 | /* 2 | * PDF/A-3 optimization (compression) example. 3 | * 4 | * Run as: go run pdfa3_validate_standard.go 5 | */ 6 | 7 | package main 8 | 9 | import ( 10 | "fmt" 11 | "log" 12 | "os" 13 | "time" 14 | 15 | "github.com/unidoc/unipdf/v4/common/license" 16 | "github.com/unidoc/unipdf/v4/model" 17 | "github.com/unidoc/unipdf/v4/model/pdfa" 18 | ) 19 | 20 | func init() { 21 | // Make sure to load your metered License API key prior to using the library. 22 | // If you need a key, you can sign up and create a free one at https://cloud.unidoc.io 23 | err := license.SetMeteredKey(os.Getenv(`UNIDOC_LICENSE_API_KEY`)) 24 | if err != nil { 25 | panic(err) 26 | } 27 | } 28 | 29 | func main() { 30 | args := os.Args 31 | if len(args) < 2 { 32 | fmt.Printf("Usage: %s INPUT_PDF_PATH", os.Args[0]) 33 | return 34 | } 35 | inputPath := args[1] 36 | 37 | // Initialize starting time. 38 | start := time.Now() 39 | 40 | // Create reader. 41 | inputFile, err := os.Open(inputPath) 42 | if err != nil { 43 | log.Fatalf("Fail: %v\n", err) 44 | } 45 | defer inputFile.Close() 46 | 47 | detailedReader, err := model.NewCompliancePdfReader(inputFile) 48 | if err != nil { 49 | log.Fatalf("Fail: %v\n", err) 50 | } 51 | 52 | // Apply standard PDF/A-3. 53 | standards := []model.StandardImplementer{ 54 | pdfa.NewProfile3A(nil), 55 | pdfa.NewProfile3B(nil), 56 | pdfa.NewProfile3U(nil), 57 | } 58 | 59 | // Iterate over input standards and check if the document passes its requirements. 60 | for _, standard := range standards { 61 | if err = standard.ValidateStandard(detailedReader); err != nil { 62 | fmt.Printf("Input document didn't pass the standard: %s - %v\n", standard.StandardName(), err) 63 | } 64 | } 65 | 66 | duration := float64(time.Since(start)) / float64(time.Millisecond) 67 | fmt.Printf("Processing time: %.2f ms\n", duration) 68 | } 69 | -------------------------------------------------------------------------------- /redact/README.md: -------------------------------------------------------------------------------- 1 | # PDF redactor Examples 2 | 3 | The example explains how a text is redacted from the a pdf file using the `redactor` package. 4 | 5 | To redact a given content from a pdf file: 6 | - First prepare the regular expressions that can match the target texts. 7 | - Then build `redactor.RedactionTerm` using the `regex` as shown in the [example](redact_text.go). 8 | - Finaly initialize a `redactor.Redactor` object using `model.PdfReader`, `redactor.RedactionOptions` and `redactor.RectangleProps` to apply redaction on the given pdf file. 9 | 10 | ## Example 11 | 12 | - [redact_text.go](redact_text.go) The example shows redaction of credit card numbers and emails from a pdf file using regex patterns. -------------------------------------------------------------------------------- /redact/outputs/test_file01_redacted.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/redact/outputs/test_file01_redacted.pdf -------------------------------------------------------------------------------- /redact/test_files/test_file01.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/redact/test_files/test_file01.pdf -------------------------------------------------------------------------------- /render/README.md: -------------------------------------------------------------------------------- 1 | # Render 2 | 3 | ### Image rendering 4 | 5 | Examples showcasing rendering PDF pages to image files: 6 | 7 | - [pdf_image_render.go](pdf_image_render.go) The example renders PDF files to images. It renders all pages of all input files to PNG images, and saves them in the specified output directory. 8 | - [pdf_image_render_custom_encoder_cgo.go](pdf_image_render_custom_encoder_cgo.go) The example renders PDF files to images using a custom JPEG2000 encoder. 9 | 10 | -------------------------------------------------------------------------------- /report/README.md: -------------------------------------------------------------------------------- 1 | # PDF Report Creation 2 | 3 | The example explains how to create PDF reports using UniPDF, it also shows you how to add tables. There is a separate example to highlight the functionality of `styled paragraphs`, which allows you to add paragraphs where each word can have different formatting. 4 | 5 | ## Examples 6 | 7 | - [pdf_report.go](pdf_report.go) The example showcases PDF report generation with UniPDF's creator package. The output is saved as unidoc-report.pdf which illustrates some of the features of the creator. 8 | - [pdf_tables.go](pdf_tables.go) The example showcases PDF tables features using UniPDF's creator package. The output is saved as UniPDF-tables.pdf which illustrates some of the features of the creator. 9 | - [pdf_custom_toc.go](pdf_custom_toc.go) The example showcases the capabilities of generating PDF custom table of contents layout. The output is saved as pdf-custom-toc.pdf. 10 | - [pdf_report_from_csv.go](pdf_report_from_csv.go) This example showcases how to prepare a report from csv data. 11 | -------------------------------------------------------------------------------- /report/Roboto-Bold.ttf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/report/Roboto-Bold.ttf -------------------------------------------------------------------------------- /report/Roboto-Regular.ttf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/report/Roboto-Regular.ttf -------------------------------------------------------------------------------- /report/pdf-custom-toc.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/report/pdf-custom-toc.pdf -------------------------------------------------------------------------------- /report/report_from_csv.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/report/report_from_csv.pdf -------------------------------------------------------------------------------- /report/report_from_csv_preview.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/report/report_from_csv_preview.png -------------------------------------------------------------------------------- /report/test-data.csv: -------------------------------------------------------------------------------- 1 | Date of Sale,Quantity Sold,Sale Price,Salesperson Name 2 | 2023-01-01,10,100,John Doe 3 | 2023-01-02,15,150,Jane Smith 4 | 2023-01-03,8,80,Jim Brown 5 | 2023-01-04,20,200,Jenny White 6 | 2023-01-05,5,50,John Doe 7 | 2023-01-06,12,120,Jane Smith 8 | 2023-01-07,22,220,Jim Brown 9 | 2023-01-08,14,140,Jenny White 10 | 2023-01-09,18,180,John Doe 11 | 2023-01-10,9,90,Jane Smith 12 | 2023-01-11,11,110,Jim Brown 13 | 2023-01-12,19,190,Jenny White 14 | 2023-01-13,6,60,John Doe 15 | 2023-01-14,25,250,Jane Smith 16 | 2023-01-15,16,160,Jim Brown 17 | 2023-01-16,10,100,Jenny White 18 | 2023-01-17,13,130,John Doe 19 | 2023-01-18,7,70,Jane Smith 20 | 2023-01-19,9,90,Jim Brown 21 | 2023-01-20,23,230,Jenny White 22 | 2023-01-21,17,170,John Doe 23 | 2023-01-22,4,40,Jane Smith 24 | 2023-01-23,21,210,Jim Brown 25 | 2023-01-24,8,80,Jenny White 26 | 2023-01-25,15,150,John Doe 27 | 2023-01-26,10,100,Jane Smith 28 | 2023-01-27,12,120,Jim Brown 29 | 2023-01-28,18,180,Jenny White 30 | 2023-01-29,6,60,John Doe 31 | 2023-01-30,20,200,Jane Smith 32 | 2023-01-31,14,140,Jim Brown 33 | -------------------------------------------------------------------------------- /report/unidoc-logo.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/report/unidoc-logo.png -------------------------------------------------------------------------------- /report/unidoc-report-landscape.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/report/unidoc-report-landscape.pdf -------------------------------------------------------------------------------- /report/unidoc-report.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/report/unidoc-report.pdf -------------------------------------------------------------------------------- /report/unipdf-tables.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/report/unipdf-tables.pdf -------------------------------------------------------------------------------- /sanitize/README.md: -------------------------------------------------------------------------------- 1 | # PDF Sanitize Contents 2 | 3 | The example explains how to sanitize PDF contents using UniPDF, it also shows you how to initiate `model.PdfWriter` and removes some of PDF page contents like annotations and PDF Javascript. 4 | 5 | ## Examples 6 | 7 | - [pdf_modify_contents.go](pdf_modify_contents.go) The example showcases PDF writer of UniPDF's model package can be used to initiate empty PDF then add page from UniPDF reader and removes page annotations. 8 | -------------------------------------------------------------------------------- /sanitize/outputs/JSPopupCalendarSanitized.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/sanitize/outputs/JSPopupCalendarSanitized.pdf -------------------------------------------------------------------------------- /sanitize/test-files/JSPopupCalendar.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/sanitize/test-files/JSPopupCalendar.pdf -------------------------------------------------------------------------------- /sanitize/unidoc-file-modified.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/sanitize/unidoc-file-modified.pdf -------------------------------------------------------------------------------- /sanitize/unidoc-file.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/sanitize/unidoc-file.pdf -------------------------------------------------------------------------------- /search-and-replace/READ.md: -------------------------------------------------------------------------------- 1 | # PDF Text Search and Replace 2 | 3 | This example shows how to do text search and replacement on PDF using unipdf. 4 | 5 | ## Examples 6 | - [search_text.go](search_text.go) This examples shows how to do text searching using unipdf's by providing the pattern string and the pages to search on. 7 | - [replace_text.go](replace_text.go) This example show how to replace a given text by searching for it using a pattern and a replacement string. 8 | A list of pages is also provided in the parameter to specify which to do the replacement. -------------------------------------------------------------------------------- /search-and-replace/replace_text.go: -------------------------------------------------------------------------------- 1 | /* 2 | * This example code shows how to do search and replace operation in PDF using unipdf 3 | * 4 | * Run as: go run replace_text.go 5 | * 6 | * example: go run replace_text.go "Australia" "America" "1,2" ./test-data/file1.pdf ./test-data/result.pdf 7 | */ 8 | package main 9 | 10 | import ( 11 | "fmt" 12 | "os" 13 | "strconv" 14 | "strings" 15 | 16 | "github.com/unidoc/unipdf/v4/common/license" 17 | "github.com/unidoc/unipdf/v4/extractor" 18 | "github.com/unidoc/unipdf/v4/model" 19 | ) 20 | 21 | func init() { 22 | // Make sure to load your metered License API key prior to using the library. 23 | // If you need a key, you can sign up and create a free one at https://cloud.unidoc.io 24 | err := license.SetMeteredKey(os.Getenv(`UNIDOC_LICENSE_API_KEY`)) 25 | if err != nil { 26 | panic(err) 27 | } 28 | } 29 | 30 | func main() { 31 | // Ensure enough arguments are provided 32 | if len(os.Args) < 5 { 33 | fmt.Println("Usage: go run replace_text.go ") 34 | os.Exit(1) 35 | } 36 | 37 | // Parse positional arguments 38 | pattern := os.Args[1] 39 | replacement := os.Args[2] 40 | pagesArg := os.Args[3] 41 | filePath := os.Args[4] 42 | outputPath := os.Args[5] 43 | 44 | // Convert pages string to a slice of integers 45 | pageStrings := strings.Split(pagesArg, ",") 46 | pageList := []int{} 47 | for _, pageStr := range pageStrings { 48 | page, err := strconv.Atoi(pageStr) 49 | if err != nil { 50 | fmt.Printf("Invalid page number: %s\n", pageStr) 51 | os.Exit(1) 52 | } 53 | pageList = append(pageList, page) 54 | } 55 | 56 | reader, _, err := model.NewPdfReaderFromFile(filePath, nil) 57 | if err != nil { 58 | fmt.Printf("Failed to create PDF reader: %v", err) 59 | os.Exit(1) 60 | } 61 | editor := extractor.NewEditor(reader) 62 | 63 | err = editor.Replace(pattern, replacement, pageList) 64 | if err != nil { 65 | fmt.Printf("Failed to search pattern: %v\n", err) 66 | os.Exit(1) 67 | } 68 | 69 | err = editor.WriteToFile(outputPath) 70 | if err != nil { 71 | fmt.Printf("Failed to write to file: %v", err) 72 | os.Exit(1) 73 | } 74 | 75 | fmt.Printf("Finished replacing %s by %s and saved the output file at %s\n", pattern, replacement, filePath) 76 | } 77 | -------------------------------------------------------------------------------- /search-and-replace/test-data/file1.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/search-and-replace/test-data/file1.pdf -------------------------------------------------------------------------------- /search-and-replace/test-data/result.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/search-and-replace/test-data/result.pdf -------------------------------------------------------------------------------- /security/README.md: -------------------------------------------------------------------------------- 1 | # PDF Security Management 2 | 3 | The example explains how you can use UniPDF to secure your PDF document. UniPDF allows you to check the security condition of existing PDF documents, set protection for new or existing PDF documents. You can also decrypt encrypted documents with a given password. 4 | 5 | ## Examples 6 | 7 | - [pdf_check_permissions.go](pdf_check_permissions.go) The example checks access permissions for a specified PDF. 8 | - [pdf_protect.go](pdf_protect.go) The example showcases how to protect PDF files by setting a password on it using UniPDF. This example both sets user and opening password and hard-codes the protection bits here, but easily adjusted in the code here although not on the command line. 9 | - [pdf_security_info.go](pdf_security_info.go) The example outputs protection information about locked PDFs. 10 | - [pdf_unlock.go](pdf_unlock.go) The example showcases how to unlock PDF files using UniPDF and it tries to decrypt encrypted documents with the given password, if that fails it tries an empty password as best effort. 11 | -------------------------------------------------------------------------------- /security/pdf_security_info.go: -------------------------------------------------------------------------------- 1 | /* 2 | * Outputs protection information about locked PDFs. 3 | * 4 | * Run as: go run pdf_security_info.go input.pdf 5 | */ 6 | 7 | package main 8 | 9 | import ( 10 | "fmt" 11 | "os" 12 | 13 | "github.com/unidoc/unipdf/v4/common/license" 14 | "github.com/unidoc/unipdf/v4/model" 15 | ) 16 | 17 | func init() { 18 | // Make sure to load your metered License API key prior to using the library. 19 | // If you need a key, you can sign up and create a free one at https://cloud.unidoc.io 20 | err := license.SetMeteredKey(os.Getenv(`UNIDOC_LICENSE_API_KEY`)) 21 | if err != nil { 22 | panic(err) 23 | } 24 | } 25 | 26 | func main() { 27 | if len(os.Args) < 2 { 28 | fmt.Printf("Usage: go run pdf_security_info.go input.pdf\n") 29 | os.Exit(0) 30 | } 31 | 32 | for _, inputPath := range os.Args[1:] { 33 | err := printSecurityInfo(inputPath) 34 | if err != nil { 35 | fmt.Printf("Error: %v\n", err) 36 | } 37 | } 38 | 39 | } 40 | 41 | func printSecurityInfo(inputPath string) error { 42 | f, err := os.Open(inputPath) 43 | if err != nil { 44 | return err 45 | } 46 | 47 | defer f.Close() 48 | 49 | pdfReader, err := model.NewPdfReader(f) 50 | if err != nil { 51 | return err 52 | } 53 | 54 | isEncrypted, err := pdfReader.IsEncrypted() 55 | if err != nil { 56 | return err 57 | } 58 | 59 | fmt.Printf("Input file %s\n", inputPath) 60 | if !isEncrypted { 61 | fmt.Printf(" - is not encrypted\n") 62 | return nil 63 | } 64 | 65 | // Try decrypting both with given password and an empty one if that fails. 66 | if isEncrypted { 67 | auth, err := pdfReader.Decrypt([]byte("")) 68 | if err != nil { 69 | return err 70 | } 71 | if !auth { 72 | fmt.Printf(" - has an opening password\n") 73 | } 74 | } 75 | 76 | method := pdfReader.GetEncryptionMethod() 77 | fmt.Printf(" - Method: %s\n", method) 78 | 79 | return nil 80 | } 81 | -------------------------------------------------------------------------------- /security/pdf_unlock.go: -------------------------------------------------------------------------------- 1 | /* 2 | * Unlocks PDF files, tries to decrypt encrypted documents with the given password, 3 | * if that fails it tries an empty password as best effort. 4 | * 5 | * Run as: go run pdf_unlock.go input.pdf output.pdf 6 | */ 7 | 8 | package main 9 | 10 | import ( 11 | "fmt" 12 | "os" 13 | 14 | "github.com/unidoc/unipdf/v4/common/license" 15 | "github.com/unidoc/unipdf/v4/model" 16 | ) 17 | 18 | func init() { 19 | // Make sure to load your metered License API key prior to using the library. 20 | // If you need a key, you can sign up and create a free one at https://cloud.unidoc.io 21 | err := license.SetMeteredKey(os.Getenv(`UNIDOC_LICENSE_API_KEY`)) 22 | if err != nil { 23 | panic(err) 24 | } 25 | } 26 | 27 | func main() { 28 | if len(os.Args) < 4 { 29 | fmt.Printf("Usage: go run pdf_unlock.go input.pdf output.pdf\n") 30 | os.Exit(1) 31 | } 32 | 33 | inputPath := os.Args[1] 34 | password := os.Args[2] 35 | outputPath := os.Args[3] 36 | 37 | err := unlockPdf(inputPath, outputPath, password) 38 | if err != nil { 39 | fmt.Printf("Error: %v\n", err) 40 | os.Exit(1) 41 | } 42 | 43 | fmt.Printf("Complete, see output file: %s\n", outputPath) 44 | } 45 | 46 | func unlockPdf(inputPath string, outputPath string, password string) error { 47 | f, err := os.Open(inputPath) 48 | if err != nil { 49 | return err 50 | } 51 | 52 | defer f.Close() 53 | 54 | pdfReader, err := model.NewPdfReader(f) 55 | if err != nil { 56 | return err 57 | } 58 | 59 | isEncrypted, err := pdfReader.IsEncrypted() 60 | if err != nil { 61 | return err 62 | } 63 | 64 | // Try decrypting both with given password and an empty one if that fails. 65 | if isEncrypted { 66 | auth, err := pdfReader.Decrypt([]byte(password)) 67 | if err != nil { 68 | return err 69 | } 70 | if !auth { 71 | return fmt.Errorf("Wrong password") 72 | } 73 | } 74 | 75 | // Generate a PdfWriter instance from existing PdfReader. 76 | pdfWriter, err := pdfReader.ToWriter(nil) 77 | if err != nil { 78 | return err 79 | } 80 | 81 | // Write to file. 82 | err = pdfWriter.WriteToFile(outputPath) 83 | return err 84 | } 85 | -------------------------------------------------------------------------------- /signatures/pdf_sign_validate.go: -------------------------------------------------------------------------------- 1 | /* 2 | * This example showcases how to validate a digital signature with UniDoc. 3 | * 4 | * $ ./pdf_sign_validate 5 | */ 6 | package main 7 | 8 | import ( 9 | "fmt" 10 | "log" 11 | "os" 12 | 13 | "github.com/unidoc/unipdf/v4/common/license" 14 | "github.com/unidoc/unipdf/v4/model" 15 | "github.com/unidoc/unipdf/v4/model/sighandler" 16 | ) 17 | 18 | func init() { 19 | // Make sure to load your metered License API key prior to using the library. 20 | // If you need a key, you can sign up and create a free one at https://cloud.unidoc.io 21 | err := license.SetMeteredKey(os.Getenv(`UNIDOC_LICENSE_API_KEY`)) 22 | if err != nil { 23 | panic(err) 24 | } 25 | } 26 | 27 | const usagef = "Usage: %s INPUT_PDF_PATH\n" 28 | 29 | func main() { 30 | args := os.Args 31 | if len(args) < 2 { 32 | fmt.Printf(usagef, os.Args[0]) 33 | return 34 | } 35 | inputPath := args[1] 36 | 37 | // Create reader. 38 | file, err := os.Open(inputPath) 39 | if err != nil { 40 | log.Fatal("Fail: %v\n", err) 41 | } 42 | defer file.Close() 43 | 44 | reader, err := model.NewPdfReader(file) 45 | if err != nil { 46 | log.Fatal("Fail: %v\n", err) 47 | } 48 | 49 | // Create signature handlers. 50 | handlerX509RSASHA1, err := sighandler.NewAdobeX509RSASHA1(nil, nil) 51 | if err != nil { 52 | log.Fatal("Fail: %v\n", err) 53 | } 54 | 55 | handlerPKCS7Detached, err := sighandler.NewAdobePKCS7Detached(nil, nil) 56 | if err != nil { 57 | log.Fatal("Fail: %v\n", err) 58 | } 59 | 60 | handlers := []model.SignatureHandler{ 61 | handlerX509RSASHA1, 62 | handlerPKCS7Detached, 63 | } 64 | 65 | // Validate signatures. 66 | res, err := reader.ValidateSignatures(handlers) 67 | if err != nil { 68 | log.Fatal("Fail: %v\n", err) 69 | } 70 | if len(res) == 0 { 71 | log.Fatal("Fail: no signature fields found") 72 | } 73 | 74 | if !res[0].IsSigned || !res[0].IsVerified { 75 | log.Fatal("Fail: validation failed") 76 | } 77 | 78 | for i, item := range res { 79 | fmt.Printf("--- Signature %d\n%s\n", i+1, item.String()) 80 | } 81 | } 82 | -------------------------------------------------------------------------------- /signatures/pdf_sign_validate_pades_b_b.go: -------------------------------------------------------------------------------- 1 | /* 2 | * This example showcases how to validate a digital signature with UniDoc for PAdES compatibility. 3 | * 4 | * $ ./pdf_sign_validate_pades_b_b 5 | */ 6 | package main 7 | 8 | import ( 9 | "fmt" 10 | "log" 11 | "os" 12 | 13 | "github.com/unidoc/unipdf/v4/common/license" 14 | "github.com/unidoc/unipdf/v4/model" 15 | "github.com/unidoc/unipdf/v4/model/sighandler" 16 | ) 17 | 18 | func init() { 19 | // Make sure to load your metered License API key prior to using the library. 20 | // If you need a key, you can sign up and create a free one at https://cloud.unidoc.io 21 | err := license.SetMeteredKey(os.Getenv(`UNIDOC_LICENSE_API_KEY`)) 22 | if err != nil { 23 | panic(err) 24 | } 25 | } 26 | 27 | const usagef = "Usage: %s INPUT_PDF_PATH\n" 28 | 29 | func main() { 30 | args := os.Args 31 | if len(args) < 2 { 32 | fmt.Printf(usagef, os.Args[0]) 33 | return 34 | } 35 | inputPath := args[1] 36 | 37 | // Create reader. 38 | file, err := os.Open(inputPath) 39 | if err != nil { 40 | log.Fatal("Fail: %v\n", err) 41 | } 42 | defer file.Close() 43 | 44 | reader, err := model.NewPdfReader(file) 45 | if err != nil { 46 | log.Fatal("Fail: %v\n", err) 47 | } 48 | 49 | // Create signature handler. It is possible to validate B-T level the same way if you create NewEtsiPAdESLevelT here 50 | padesHandler, err := sighandler.NewEtsiPAdESLevelB(nil, nil, nil) 51 | if err != nil { 52 | log.Fatal("Fail: %v\n", err) 53 | } 54 | 55 | handlers := []model.SignatureHandler{ 56 | padesHandler, 57 | } 58 | 59 | // Validate signatures. 60 | res, err := reader.ValidateSignatures(handlers) 61 | if err != nil { 62 | log.Fatal("Fail: %v\n", err) 63 | } 64 | if len(res) == 0 { 65 | log.Fatal("Fail: no signature fields found") 66 | } 67 | 68 | if !res[0].IsSigned || !res[0].IsVerified { 69 | log.Fatal("Fail: validation failed") 70 | } 71 | 72 | for i, item := range res { 73 | fmt.Printf("--- Signature %d\n%s\n", i+1, item.String()) 74 | } 75 | } 76 | -------------------------------------------------------------------------------- /signatures/pdf_sign_validate_timestamp.go: -------------------------------------------------------------------------------- 1 | /* 2 | * This example showcases how to validate a digital signature containing timestamp with UniDoc. 3 | * 4 | * $ ./pdf_sign_validate_timestamp 5 | */ 6 | package main 7 | 8 | import ( 9 | "fmt" 10 | "log" 11 | "os" 12 | 13 | "github.com/unidoc/unipdf/v4/common/license" 14 | "github.com/unidoc/unipdf/v4/core" 15 | "github.com/unidoc/unipdf/v4/model" 16 | "github.com/unidoc/unipdf/v4/model/sighandler" 17 | ) 18 | 19 | func init() { 20 | // Make sure to load your metered License API key prior to using the library. 21 | // If you need a key, you can sign up and create a free one at https://cloud.unidoc.io 22 | err := license.SetMeteredKey(os.Getenv(`UNIDOC_LICENSE_API_KEY`)) 23 | if err != nil { 24 | panic(err) 25 | } 26 | } 27 | 28 | const usagef = "Usage: %s INPUT_PDF_PATH\n" 29 | 30 | func main() { 31 | args := os.Args 32 | if len(args) < 1 { 33 | fmt.Printf(usagef, os.Args[0]) 34 | return 35 | } 36 | inputPath := args[1] 37 | 38 | // Create reader. 39 | file, err := os.Open(inputPath) 40 | if err != nil { 41 | log.Fatal("Fail: %v\n", err) 42 | } 43 | defer file.Close() 44 | 45 | reader, err := model.NewPdfReader(file) 46 | if err != nil { 47 | log.Fatal("Fail: %v\n", err) 48 | } 49 | 50 | // Create signature handlers. 51 | handler, err := sighandler.NewDocTimeStamp("", 0) 52 | if err != nil { 53 | log.Fatal("Fail: %v\n", err) 54 | } 55 | 56 | handlers := []model.SignatureHandler{ 57 | handler, 58 | } 59 | 60 | // Validate signatures. 61 | res, err := reader.ValidateSignatures(handlers) 62 | if err != nil { 63 | log.Fatal("Fail: %v\n", err) 64 | } 65 | if len(res) == 0 { 66 | log.Fatal("Fail: no signature fields found") 67 | } 68 | 69 | timestampRes := make(map[int]model.SignatureValidationResult) 70 | 71 | for i, item := range res { 72 | // find only timestamp signatures 73 | if d, ok := core.GetDict(item.Fields[0].V); ok && d.Get("SubFilter").String() == "ETSI.RFC3161" { 74 | timestampRes[i] = item 75 | } 76 | } 77 | 78 | if len(timestampRes) == 0 { 79 | log.Fatal("Fail: validation failed") 80 | } 81 | 82 | for i, item := range timestampRes { 83 | fmt.Printf("--- Signature %d\n%s\n", i+1, item.String()) 84 | } 85 | } 86 | -------------------------------------------------------------------------------- /svg/fonts/Roboto-Bold.ttf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/svg/fonts/Roboto-Bold.ttf -------------------------------------------------------------------------------- /svg/fonts/Roboto-Regular.ttf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/svg/fonts/Roboto-Regular.ttf -------------------------------------------------------------------------------- /svg/pdf_shapes_and_text_svg.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/svg/pdf_shapes_and_text_svg.pdf -------------------------------------------------------------------------------- /svg/pdf_svg_shapes_and_text.go: -------------------------------------------------------------------------------- 1 | /* 2 | * An example of adding svg to a PDF file 3 | * 4 | * Run as: go run add_svg.go 5 | */ 6 | 7 | package main 8 | 9 | import ( 10 | "os" 11 | 12 | "github.com/unidoc/unipdf/v4/common/license" 13 | "github.com/unidoc/unipdf/v4/creator" 14 | ) 15 | 16 | func init() { 17 | // Make sure to load your metered License API key prior to using the library. 18 | // If you need a key, you can sign up and create a free one at https://cloud.unidoc.io 19 | err := license.SetMeteredKey(os.Getenv(`UNIDOC_LICENSE_API_KEY`)) 20 | if err != nil { 21 | panic(err) 22 | } 23 | } 24 | 25 | func main() { 26 | c := creator.New() 27 | file := "./svgs/different_shapes.svg" 28 | graphicSvg, err := creator.NewGraphicSVGFromFile(file) 29 | if err != nil { 30 | panic(err) 31 | } 32 | 33 | err = c.Draw(graphicSvg) 34 | if err != nil { 35 | panic(err) 36 | } 37 | c.WriteToFile("pdf_shapes_and_text_svg.pdf") 38 | } 39 | -------------------------------------------------------------------------------- /svg/svgs/different_shapes.svg: -------------------------------------------------------------------------------- 1 | 2 | 3 | Different Shapes 4 | 5 | 6 | Circle 7 | 8 | 9 | Square 10 | 11 | 12 | Ellipse 13 | 14 | 15 | Rectangle 16 | 17 | 18 | Triangle 19 | 20 | 21 | Star 22 | 23 | 24 | This is an example paragraph to demonstrate how color can be applied to a text 25 | 26 | 27 | -------------------------------------------------------------------------------- /svg/unidoc-report_with_svg.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/svg/unidoc-report_with_svg.pdf -------------------------------------------------------------------------------- /table-info/README.md: -------------------------------------------------------------------------------- 1 | # Table Info examples 2 | 3 | The `TableInfo()` method provides the table related information of the textMark that is being called from. 4 | Generally it returns two kinds of information about the textMark in relation to a table. 5 | * A pointer to the `Table` where the text mark is found in. If it is outside a table then this value is `nil`. 6 | * The cell coordinate of the table where the texMark is found at. 7 | This is given as `[][]int` of row, column values. 8 | 9 | ## What can we do with this information? 10 | Getting the table information from the text side gives us an access to the text related information of the tables. Here are some sample usages of this method. 11 | 1. Text distribution
12 | The distribution of the text inside tables vs out side tables.
13 | The code at [table_info.go](./table_info.go) demonstrates how to calculate the distribution of the page content. 14 | 2. Partition extracted text
15 | This means dividing the text into inside table and outside table sections. This can help us know where the table are found in relation to the text on the page. 16 | The example at [partition_text.go](./partition_text.go) show cases how to divide an extracted text into sections of inside table and outside table contents. -------------------------------------------------------------------------------- /table-info/output/partitioned_content_1.txt: -------------------------------------------------------------------------------- 1 | working with page 1 of file ./table-info/test-files/PDF Tables.pdf 2 | 3 | ------------------- outside table begins --------------- 4 | PDF Tables 5 | 6 | You find tables in a variety of forms. You might have a job application form where tables are used for 7 | work and education history. You see many tables in point-of-sale purchase forms where you find 8 | columns of descriptions, quantity, price, and totals across each row. In other forms, you see tables that 9 | make data entry and exporting data intuitive and easy for form fillers. 10 | 11 | Sample Table 12 | 13 | 14 | ------------------- outside table ends ------------------ 15 | 16 | ------------------- inside table begins ----------------- 17 | Head1 Head2 18 | Row 1 col 1 Row 1 col 2 19 | Row 2 col 1 Row 2 col2 20 | Row 3 col 1 and col 2 21 | ------------------- inside table ends ------------------- 22 | 23 | --------------- out side table begins -------------- 24 | 25 | 26 | 27 | --------------- outside table ends ------------------ 28 | -------------------------------------------------------------------------------- /table-info/output/partitioned_content_2.txt: -------------------------------------------------------------------------------- 1 | working with page 1 of file ./table-info/test-files/table.pdf 2 | 3 | ------------------- outside table begins --------------- 4 | Example table 5 | 6 | This is an example of a data table. 7 | 8 | 9 | ------------------- outside table ends ------------------ 10 | 11 | ------------------- inside table begins ----------------- 12 | Disability 13 | Category Participants Ballots 14 | Completed Ballots 15 | Incomplete/ 16 | Terminated Results 17 | Accuracy Time to 18 | complete 19 | Blind 5 1 4 34.5%, n=1 1199 sec, n=1 20 | Low Vision 5 2 3 (97.7%, n=3) 21 | 98.3% n=2 (1934 sec, n=2) 22 | 1716 sec, n=3 23 | Dexterity 5 4 1 98.3%, n=4 1672.1 sec, n=4 24 | Mobility 3 3 0 95.4%, n=3 1416 sec, n=3 25 | ------------------- inside table ends ------------------- 26 | 27 | --------------- out side table begins -------------- 28 | 29 | 30 | 31 | --------------- outside table ends ------------------ 32 | -------------------------------------------------------------------------------- /table-info/table_content.go: -------------------------------------------------------------------------------- 1 | /* 2 | * This example shows how to calculate the percentage of page content that is inside a table 3 | * using the TextMark.TableInfo() method. 4 | * Run as: go run table_content.go inputFile.pdf pageNum 5 | */ 6 | 7 | package main 8 | 9 | import ( 10 | "fmt" 11 | "os" 12 | "strconv" 13 | 14 | "github.com/unidoc/unipdf/v4/common/license" 15 | "github.com/unidoc/unipdf/v4/extractor" 16 | "github.com/unidoc/unipdf/v4/model" 17 | ) 18 | 19 | func init() { 20 | // Make sure to load your metered License API key prior to using the library. 21 | // If you need a key, you can sign up and create a free one at https://cloud.unidoc.io 22 | err := license.SetMeteredKey(os.Getenv(`UNIDOC_LICENSE_API_KEY`)) 23 | if err != nil { 24 | panic(err) 25 | } 26 | } 27 | 28 | func main() { 29 | if len(os.Args) < 3 { 30 | fmt.Printf("Usage: go run table_content.go inputFile.pdf pageNum\n") 31 | os.Exit(1) 32 | } 33 | inputFile := os.Args[1] 34 | page := os.Args[2] 35 | pageNum, err := strconv.Atoi(page) 36 | if err != nil { 37 | panic(err) 38 | } 39 | checkContentDistribution(inputFile, pageNum) 40 | } 41 | 42 | func checkContentDistribution(inputFile string, pageNum int) { 43 | fmt.Printf("running with %s\n", inputFile) 44 | pdfReader, f, err := model.NewPdfReaderFromFile(inputFile, nil) 45 | defer f.Close() 46 | if err != nil { 47 | panic(err) 48 | } 49 | page, err := pdfReader.GetPage(pageNum) 50 | if err != nil { 51 | panic(err) 52 | } 53 | ex, err := extractor.New(page) 54 | if err != nil { 55 | panic(err) 56 | } 57 | pageText, _, _, err := ex.ExtractPageText() 58 | if err != nil { 59 | panic(err) 60 | } 61 | 62 | text := pageText.Text() 63 | length := len(text) 64 | count := 0 65 | for _, textMark := range pageText.Marks().Elements() { 66 | table, _ := textMark.TableInfo() 67 | if table != nil { 68 | count += len(textMark.Text) 69 | } 70 | } 71 | var distribution float64 72 | if length != 0 { 73 | distribution = float64(count) / float64(length) 74 | } 75 | fmt.Printf("\n %.3f percent of the page content is inside a table \n", distribution) 76 | } 77 | -------------------------------------------------------------------------------- /table-info/test-files/PDF Tables.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/table-info/test-files/PDF Tables.pdf -------------------------------------------------------------------------------- /table-info/test-files/table.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/table-info/test-files/table.pdf -------------------------------------------------------------------------------- /tables/README.md: -------------------------------------------------------------------------------- 1 | # PDF Tables 2 | 3 | The example explains how to create tables in your PDF reports. The examples vary from the creation of simple tables to how to create complex tables that include sub-tables and headers. The [pdf_tables_header_images.go](pdf_tables_header_images.go) mentions how to add headers, alongside, the example also includes the code for including images in the tables. 4 | 5 | ## Examples 6 | 7 | - [pdf_tables_simple.go](pdf_tables_simple.go) The example showcases how you can use the power of the `creator` package to create a simple table. 8 | - [pdf_tables_styling.go](pdf_tables_styling.go) The example highlights how you can style your tables. UniPDF allows you to customize everything from the background-color to the font-size and color of the text inside the tables. 9 | - [pdf_tables_colSpan.go](pdf_tables_colSpan.go) The example showcases how to generate columns in tables that are longer than one column. 10 | - [pdf_tables_header_images.go](pdf_tables_header_images.go) The example highlights how you can include headers in your tables. The header persists along pages for tables that are longer than one page. The example also discusses how to add images in tables. 11 | - [pdf_tables_subtables.go](pdf_tables_subtables.go) The example showcases how you can create a table that has sub-tables inside of it. This feature will allow you produce complex tables that suit your needs. 12 | - [pdf_tables_row_wrap.go](pdf_tables_row_wrap.go) The example showcases row wrapping across pages in creator tables. 13 | - [pdf_tables_division_layout.go](pdf_tables_division_layout.go) This example showcases a masonry-like layout created using tables and divisions. 14 | -------------------------------------------------------------------------------- /tables/images/image1.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/tables/images/image1.jpg -------------------------------------------------------------------------------- /tables/images/image2.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/tables/images/image2.jpg 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https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/tables/unipdf-tables-row-wrap.pdf -------------------------------------------------------------------------------- /templates/airplane-ticket/README.md: -------------------------------------------------------------------------------- 1 | Sample airplane ticket 2 | ====================== 3 | 4 | This example showcases the usage of creator templates by creating a sample 5 | airplane ticket. 6 | 7 |

8 | sample-airplane-ticket-preview 9 |

10 | -------------------------------------------------------------------------------- /templates/airplane-ticket/templates/res/logo.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/airplane-ticket/templates/res/logo.png -------------------------------------------------------------------------------- /templates/airplane-ticket/templates/res/screenshot.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/airplane-ticket/templates/res/screenshot.png -------------------------------------------------------------------------------- /templates/airplane-ticket/unipdf-airplain-ticket.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/airplane-ticket/unipdf-airplain-ticket.pdf -------------------------------------------------------------------------------- /templates/aviation-checklist/README.md: -------------------------------------------------------------------------------- 1 | Sample aviation checklist 2 | ========================= 3 | 4 | This example showcases the usage of creator templates by creating a sample aviation checklist. 5 | 6 |

7 | sample-aviation-cheklist-preview 8 |

9 | -------------------------------------------------------------------------------- /templates/aviation-checklist/templates/footer.tpl: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | Version {{ .Version }} {{ .ReleaseDate }} 6 | 7 | 8 | 9 | 10 | 11 | Copyright © 2021 12 | unidoc.io 13 | 14 | 15 | 16 | 17 | 18 | Page {{ .PageNum }} 19 | 20 | 21 |
22 | -------------------------------------------------------------------------------- /templates/aviation-checklist/templates/header.tpl: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | SamplePlane 123 - For Illustration Purposes 6 | 7 | 8 | 9 | 10 |
11 | 12 | 13 | 14 | 15 | 16 | UniAirlines 17 | 18 | 19 |
20 | 21 | 22 | 23 | 24 | Normal Operating Checklist 25 | 26 | 27 | 28 | -------------------------------------------------------------------------------- /templates/aviation-checklist/templates/res/logo.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/aviation-checklist/templates/res/logo.png -------------------------------------------------------------------------------- /templates/aviation-checklist/templates/res/screenshot.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/aviation-checklist/templates/res/screenshot.png -------------------------------------------------------------------------------- /templates/aviation-checklist/unipdf-aviation-checklist.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/aviation-checklist/unipdf-aviation-checklist.pdf -------------------------------------------------------------------------------- /templates/bank-account-statement/README.md: -------------------------------------------------------------------------------- 1 | Sample bank account statement 2 | ============================= 3 | 4 | This example showcases the usage of creator templates by creating a sample 5 | bank account statement. 6 | 7 |

8 | sample-bank-account-statement-preview 9 |

10 | -------------------------------------------------------------------------------- /templates/bank-account-statement/templates/footer.tpl: -------------------------------------------------------------------------------- 1 | 2 | 3 | © {{.Date.Year}} {{.Statement.BankName}}, N.A. All rights reserved. Member FDIC. 4 | 5 | -------------------------------------------------------------------------------- /templates/bank-account-statement/templates/header.tpl: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | {{.Statement.BankName}} Simple Business Checking 7 | 8 |
9 | 10 | 11 | Account Number: 12 | {{.Statement.AccountNumber}} 13 | 14 | 15 | 16 | 17 | • 18 | 19 | 20 | 21 | 22 | {{formatTime .Statement.DateBegin "Jan 02 2006"}} - {{formatTime .Statement.DateEnd "Jan 02 2006"}} 23 | 24 | 25 | 26 | 27 | • 28 | 29 | 30 | 31 | 32 | Page {{.PageNum}} of {{.TotalPages}} 33 | 34 | 35 |
36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | -------------------------------------------------------------------------------- /templates/bank-account-statement/templates/res/logo.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/bank-account-statement/templates/res/logo.png -------------------------------------------------------------------------------- /templates/bank-account-statement/templates/res/screenshot.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/bank-account-statement/templates/res/screenshot.png -------------------------------------------------------------------------------- /templates/bank-account-statement/unipdf-bank-account-statement.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/bank-account-statement/unipdf-bank-account-statement.pdf -------------------------------------------------------------------------------- /templates/boarding-pass/README.md: -------------------------------------------------------------------------------- 1 | Sample boarding pass document 2 | ================================== 3 | 4 | This example showcases the usage of creator templates by creating a sample 5 | boarding pass document. 6 | 7 |

8 | sample-boarding-pass-preview 9 |

10 | -------------------------------------------------------------------------------- /templates/boarding-pass/boarding_pass.json: -------------------------------------------------------------------------------- 1 | { 2 | "etk": "1234567890/1", 3 | "reg_num": "12345", 4 | "passenger_name": "Jane Doe", 5 | "from": { 6 | "city": "Jakarta", 7 | "code": "CGK" 8 | }, 9 | "destination": { 10 | "city": "New York", 11 | "code": "JFK" 12 | }, 13 | "flight_number": "S7 168", 14 | "gate": "G21", 15 | "class": "Econom (T)", 16 | "seat": "12D", 17 | "date": "16 June", 18 | "boarding_time": "06:35", 19 | "departure_time": "07:05", 20 | "arrival_time": "07:30" 21 | } -------------------------------------------------------------------------------- /templates/boarding-pass/templates/res/baggage.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/boarding-pass/templates/res/baggage.png -------------------------------------------------------------------------------- /templates/boarding-pass/templates/res/logo.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/boarding-pass/templates/res/logo.png -------------------------------------------------------------------------------- /templates/boarding-pass/templates/res/screenshot.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/boarding-pass/templates/res/screenshot.png -------------------------------------------------------------------------------- /templates/boarding-pass/templates/res/seat_icon.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/boarding-pass/templates/res/seat_icon.png -------------------------------------------------------------------------------- /templates/boarding-pass/unipdf-boarding-pass.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/boarding-pass/unipdf-boarding-pass.pdf -------------------------------------------------------------------------------- /templates/concert-ticket/README.md: -------------------------------------------------------------------------------- 1 | Sample concert ticket 2 | ====================== 3 | 4 | This example showcases the usage of creator templates by creating a concert ticket. 5 | ![screenshot-preview](./templates/res/screenshot.png) -------------------------------------------------------------------------------- /templates/concert-ticket/concert-ticket.json: -------------------------------------------------------------------------------- 1 | { 2 | "ticket_number": "000385724", 3 | "event_time": "2021-05-25T19:30:00.00Z", 4 | "ticket_detail": [ 5 | { 6 | "field_name": "Admission", 7 | "field_value": "General admission" 8 | }, 9 | { 10 | "field_name": "Ticket type", 11 | "field_value": "Adult" 12 | }, 13 | { 14 | "field_name": "Price", 15 | "field_value": "$32" 16 | }, 17 | { 18 | "field_name": "Name", 19 | "field_value": "Jane R. Doe" 20 | }, 21 | { 22 | "field_name": "Address", 23 | "field_value": "107 Pickens Way" 24 | } 25 | ], 26 | "rules_of_attendance": [ 27 | "1. Do not stand up in front of people who are sitting down", 28 | "2. Do not take up too much space in a pit/GA section", 29 | "3. DO NOT force your way to the front of the stage", 30 | "4. Let people pass through if they are trying to exit", 31 | "5. Make friends with those around you", 32 | "6. Let shorter people stand in front of you", 33 | "7. Sharing is caring!", 34 | "8. Do not interrupt those sitting near you with a drink run every other song", 35 | "9. Do not talk loudly during the concert", 36 | "10. Rock out and have fun!" 37 | ], 38 | "rules_of_purchase": [ 39 | "- No refunds or exchanges.", 40 | "- Unused tickets may be converted to a tax - deductible donation.", 41 | "- All photography, video and audio recording is prohibited.", 42 | "- Cameras and tape or video recorders are not allowed in the theater due to copyright law." 43 | ] 44 | } -------------------------------------------------------------------------------- /templates/concert-ticket/templates/res/map.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/concert-ticket/templates/res/map.png -------------------------------------------------------------------------------- /templates/concert-ticket/templates/res/red-guitar.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/concert-ticket/templates/res/red-guitar.png -------------------------------------------------------------------------------- /templates/concert-ticket/templates/res/screenshot.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/concert-ticket/templates/res/screenshot.png -------------------------------------------------------------------------------- /templates/concert-ticket/templates/res/ticket-img.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/concert-ticket/templates/res/ticket-img.png -------------------------------------------------------------------------------- /templates/concert-ticket/templates/res/unidoc-logo.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/concert-ticket/templates/res/unidoc-logo.png -------------------------------------------------------------------------------- /templates/concert-ticket/unipdf-ticket.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/concert-ticket/unipdf-ticket.pdf -------------------------------------------------------------------------------- /templates/documentation/README.md: -------------------------------------------------------------------------------- 1 | Documentation 2 | ============= 3 | 4 | This is the official documentation for the creator templates feature. However, 5 | it can also serve as a technical documentation/tutorial example. 6 | Documentation PDF file: [unipdf-templates-documentation.pdf](unipdf-templates-documentation.pdf). 7 | 8 |

9 | documentation-preview 10 |

11 | -------------------------------------------------------------------------------- /templates/documentation/templates/chapters/02_07_Page_Breaks.tpl: -------------------------------------------------------------------------------- 1 | 2 | {{template "chapter-title" dict "Text" "Page Breaks"}} 3 | 4 | 5 | The 6 | page break 7 | component has a single purpose and that is to end the current page and start a new one. The component is represented in templates using the 8 | {{xmlEscape ""}} 9 | tag. 10 | {{.newline}}{{.newline}} 11 | 12 | 13 | {{template "paragraph" dict "Font" "helvetica-bold" "Margin" "0 0 10 0" "Text" "Basic syntax of page breaks:"}} 14 | 15 | {{$codeBlock := 16 | `` 17 | }} 18 | {{template "code-block" dict "Margin" "0 0 5 0" "HideResult" true "Code" $codeBlock}} 19 | 20 | -------------------------------------------------------------------------------- /templates/documentation/templates/chapters/03_00_Container_Components.tpl: -------------------------------------------------------------------------------- 1 | 2 | {{template "chapter-title" dict "Text" "Container Components"}} 3 | 4 | 5 | Container 6 | components are used to group other components, usually with the goal of presenting them in a structured way. Most creator 7 | container 8 | components can be used in templates, with support for more to come in the near future.{{.newline}}{{.newline}} 9 | Here is the list of currently supported components: 10 | 11 | 12 | {{$components := array 13 | (dict "name" "division" "children" (array (dict "name" "background"))) 14 | (dict "name" "table" "children" (array (dict "name" "table-cell"))) 15 | (dict "name" "list" "children" (array (dict "name" "list-item") (dict "name" "list-marker"))) 16 | (dict "name" "chapter" "children" (array (dict "name" "chapter-heading"))) 17 | }} 18 | 19 | {{range $i, $component := $components}} 20 | 21 | • 22 | {{$component.name}} 23 | 24 | {{range $i, $child := $component.children}} 25 | 26 | • 27 | {{$child.name}} 28 | 29 | {{end}} 30 | 31 | {{end}} 32 | 33 | 34 | {{template "03_01_Divisions" .}} 35 | 36 | 37 | 38 | {{template "03_02_Tables" .}} 39 | 40 | 41 | 42 | {{template "03_03_Lists" .}} 43 | 44 | 45 | 46 | {{template "03_04_Chapters" .}} 47 | 48 | -------------------------------------------------------------------------------- /templates/documentation/templates/chapters/04_00_Attributes_and_Resources.tpl: -------------------------------------------------------------------------------- 1 | 2 | {{template "chapter-title" dict "Text" "Attributes and Resources"}} 3 | 4 | 5 | This chapter includes information regarding methods of loading resources ( 6 | fonts 7 | , 8 | images 9 | , 10 | colors 11 | ) and the usage of attributes which have shorthand forms ( 12 | margin 13 | , 14 | border-radius 15 | ). 16 | 17 | 18 | 19 | {{template "04_01_Fonts" .}} 20 | 21 | 22 | {{template "04_02_Images" .}} 23 | 24 | 25 | {{template "04_03_Colors" .}} 26 | 27 | 28 | {{template "04_04_Margin_and_Padding" .}} 29 | 30 | 31 | {{template "04_05_Border_Radius" .}} 32 | 33 | -------------------------------------------------------------------------------- /templates/documentation/templates/footer.tpl: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | © {{.Date.Year}} UniDoc ehf. 11 | 12 | 13 | 14 | 15 | Table of contents 16 | ⇑ 17 | 18 | 19 | 20 | 21 | Page 22 | {{.PageNum}} 23 | of 24 | {{.TotalPages}} 25 | 26 | 27 |
28 | 29 | -------------------------------------------------------------------------------- /templates/documentation/templates/front-page.tpl: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | Uni 7 | PDF 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | {{strToUpper "Templates Documentation"}} 18 | 19 | 20 | 21 | 22 | {{range $i, $unused := (loop 4)}} 23 | 24 | 25 | 26 | {{end}} 27 |
28 | 29 | 30 | 31 | 32 | 33 | POWERED BY 34 | 35 | 36 | 37 | 38 | -------------------------------------------------------------------------------- /templates/documentation/templates/header.tpl: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | UniPDF templates documentation 9 | 10 | 11 | 12 | 13 | Page 14 | {{.PageNum}} 15 | of 16 | {{.TotalPages}} 17 | 18 | 19 |
20 | 21 | 22 | 23 | 24 | 25 | 26 | -------------------------------------------------------------------------------- /templates/documentation/templates/main.tpl: -------------------------------------------------------------------------------- 1 | 2 | {{template "01_00_Introduction" .}} 3 | 4 | 5 | {{template "02_00_Components" .}} 6 | 7 | 8 | 9 | {{template "03_00_Container_Components" .}} 10 | 11 | 12 | 13 | {{template "04_00_Attributes_and_Resources" .}} 14 | 15 | 16 | 17 | {{template "05_00_Golang_Interface" .}} 18 | -------------------------------------------------------------------------------- /templates/documentation/templates/res/fonts/DejaVuSansMono.ttf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/documentation/templates/res/fonts/DejaVuSansMono.ttf -------------------------------------------------------------------------------- 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8 | sample-lab-results-preview 9 |

10 | -------------------------------------------------------------------------------- /templates/lab-results/templates/footer.tpl: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | FINAL REPORT 8 | 9 | 10 | 11 | 12 | 13 | Date Issued: {{ .Date }} 14 | 15 | 16 | 17 | 18 | 19 | Page {{ .PageNum }} of {{ .TotalPages }} 20 | 21 | 22 | 23 | 24 | 25 | This document contains private and confidential health information protected by state and federal law. If you have received this document in error, please call {{ .SupportPhone }} 26 | 27 | 28 | 29 | 30 | 31 | © 1995-2020 Sample Corporation of America® Holdings All Rights Reserved - Enterprise Report Version: 1.00 32 | 33 | 34 |
35 | -------------------------------------------------------------------------------- /templates/lab-results/templates/header.tpl: -------------------------------------------------------------------------------- 1 | {{define "info-field"}} 2 | 3 | 4 | {{ .Title }} 5 | 6 | 7 | 8 | 9 | {{ .Value }} 10 | 11 | 12 | {{end}} 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | SAMPLE REPORT 23 | 24 | 25 | 26 | 27 |
28 | {{template "info-field" (dict "Title" "Specimen ID:" "Value" .SpecimenID) }} 29 | {{template "info-field" (dict "Title" "Control ID:" "Value" .ControlID) }} 30 | {{template "info-field" (dict "Title" "Acct #:" "Value" .AcctNum) }} 31 | {{template "info-field" (dict "Title" "Phone:" "Value" .Phone) }} 32 | {{template "info-field" (dict "Title" "Rte:" "Value" .Rte) }} 33 |
34 | 35 | 36 | 37 | 38 | SampleLab Test Master 39 | Test Account 40 | 1234 Millstream Road 41 | CLEANSVILLE NC 12345 42 | 43 | 44 | 45 | -------------------------------------------------------------------------------- /templates/lab-results/templates/res/logo.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/lab-results/templates/res/logo.png -------------------------------------------------------------------------------- /templates/lab-results/templates/res/screenshot.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/lab-results/templates/res/screenshot.png -------------------------------------------------------------------------------- /templates/lab-results/unipdf-lab-results.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/lab-results/unipdf-lab-results.pdf -------------------------------------------------------------------------------- /templates/log-book-report/README.md: -------------------------------------------------------------------------------- 1 | Sample log book document 2 | ====================== 3 | 4 | This example showcases the usage of creator templates by creating a sample 5 | log book document. 6 | 7 |

8 | sample-logbook-preview 9 |

-------------------------------------------------------------------------------- /templates/log-book-report/templates/footer.tpl: -------------------------------------------------------------------------------- 1 | {{if and (gt .PageNum 1) (lt .PageNum 74)}} 2 | 3 | 4 | 5 | Page {{.PageNum}} | 6 | Page Operations Log Book 7 | 8 | 9 | 10 | 11 | Date Of Print 12 | {{.DateOfPrint}} 13 | | Date Range 14 | {{.DateRange}} 15 | 16 | 17 |
18 | {{end}} -------------------------------------------------------------------------------- /templates/log-book-report/templates/front-page.tpl: -------------------------------------------------------------------------------- 1 | 2 | 3 | Operations Log 4 | 5 | 6 | Book 7 | 8 | 9 | 10 | 11 | Powered by Unidoc 12 | 13 | -------------------------------------------------------------------------------- /templates/log-book-report/templates/header.tpl: -------------------------------------------------------------------------------- 1 | {{if and (gt .PageNum 1) (lt .PageNum 74)}} 2 | 3 | 4 | 5 | {{if isEven .PageNum}} 6 | RECEIVED 7 | {{else}} 8 | SENT 9 | {{end}} 10 | 11 | 12 | 13 | 14 | Operations Log Book Printout 15 | 16 | 17 |
18 | {{end}} -------------------------------------------------------------------------------- /templates/log-book-report/templates/res/Exo-Bold.ttf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/log-book-report/templates/res/Exo-Bold.ttf -------------------------------------------------------------------------------- /templates/log-book-report/templates/res/Exo-Italic.ttf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/log-book-report/templates/res/Exo-Italic.ttf -------------------------------------------------------------------------------- /templates/log-book-report/templates/res/Exo-Regular.ttf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/log-book-report/templates/res/Exo-Regular.ttf -------------------------------------------------------------------------------- /templates/log-book-report/templates/res/pages.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/log-book-report/templates/res/pages.png -------------------------------------------------------------------------------- /templates/log-book-report/unipdf-log-book.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/log-book-report/unipdf-log-book.pdf -------------------------------------------------------------------------------- /templates/medical-bill/README.md: -------------------------------------------------------------------------------- 1 | Sample medical bill 2 | =================== 3 | 4 | This example showcases the usage of creator templates by creating a sample 5 | medical bill. 6 | 7 |

8 | sample-medical-bill-preview 9 |

10 | -------------------------------------------------------------------------------- /templates/medical-bill/medical_bill.json: -------------------------------------------------------------------------------- 1 | { 2 | "guarantor": { 3 | "number": "2nnnnn", 4 | "name": "Sample Guarantor", 5 | "address1": "123 MAIN STREET", 6 | "address2": "ANYWHERE, NY 12345 - 6789" 7 | }, 8 | "statement_date": "01/02/2023", 9 | "due_date": "Upon Receipt", 10 | "services": [ 11 | { 12 | "items": [ 13 | { 14 | "date": "01/02/2023 to 01/02/2023", 15 | "desc": "Visit #123 Sample Patient" 16 | }, 17 | { 18 | "desc": "Pharmacy", 19 | "charges": "60.53" 20 | }, 21 | { 22 | "desc": "Treatment or Observation Room", 23 | "charges": "588.00" 24 | }, 25 | { 26 | "desc": "Insurance Payment", 27 | "payment": "-598.53" 28 | }, 29 | { 30 | "desc": "Total Hospital Charges", 31 | "charges": "638.53" 32 | } 33 | ], 34 | "total_payments": "-598.53", 35 | "total_adjustments": "0.0", 36 | "patient_due": "40.00" 37 | } 38 | ], 39 | "total": "$40.00" 40 | } -------------------------------------------------------------------------------- /templates/medical-bill/templates/res/clinic_care.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/medical-bill/templates/res/clinic_care.png -------------------------------------------------------------------------------- /templates/medical-bill/templates/res/health_care.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/medical-bill/templates/res/health_care.png -------------------------------------------------------------------------------- /templates/medical-bill/templates/res/hospital_logo.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/medical-bill/templates/res/hospital_logo.png -------------------------------------------------------------------------------- /templates/medical-bill/templates/res/screenshot.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/medical-bill/templates/res/screenshot.png -------------------------------------------------------------------------------- /templates/medical-bill/unipdf-medical-bill.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/medical-bill/unipdf-medical-bill.pdf -------------------------------------------------------------------------------- /templates/medication-schedule-report/README.md: -------------------------------------------------------------------------------- 1 | Sample medication schedule document 2 | ====================== 3 | 4 | This example showcases the usage of creator templates by creating a sample medication schedule document. 5 | 6 |

7 | sample-report-preview 8 |

-------------------------------------------------------------------------------- /templates/medication-schedule-report/templates/footer.tpl: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | Page {{.PageNum}} 6 | 7 | 8 | 9 | 10 |
11 | 12 | 13 | Hem/Onc Form {{.FormNumber}} Permanent Record {{.PermanentRecordNumber}} Medication Record {{.MedicationRecord}} 14 | 15 | 16 |
17 | 18 | -------------------------------------------------------------------------------- /templates/medication-schedule-report/templates/res/arial.ttf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/medication-schedule-report/templates/res/arial.ttf -------------------------------------------------------------------------------- /templates/medication-schedule-report/templates/res/arialbd.ttf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/medication-schedule-report/templates/res/arialbd.ttf -------------------------------------------------------------------------------- /templates/medication-schedule-report/templates/res/bar-code.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/medication-schedule-report/templates/res/bar-code.png -------------------------------------------------------------------------------- /templates/medication-schedule-report/templates/res/checkmark-empty.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/medication-schedule-report/templates/res/checkmark-empty.png -------------------------------------------------------------------------------- /templates/medication-schedule-report/templates/res/checkmark.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/medication-schedule-report/templates/res/checkmark.png -------------------------------------------------------------------------------- /templates/medication-schedule-report/templates/res/logo.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/medication-schedule-report/templates/res/logo.png -------------------------------------------------------------------------------- /templates/medication-schedule-report/templates/res/screenshot.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/medication-schedule-report/templates/res/screenshot.png -------------------------------------------------------------------------------- /templates/medication-schedule-report/unipdf-medication-schedule.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/medication-schedule-report/unipdf-medication-schedule.pdf -------------------------------------------------------------------------------- /templates/receipt/README.md: -------------------------------------------------------------------------------- 1 | Sample receipt document 2 | ====================== 3 | This example showcases the usage of creator templates by creating a receipt document. 4 |

5 | sample-receipt-preview 6 |

-------------------------------------------------------------------------------- /templates/receipt/contents/receipt.json: -------------------------------------------------------------------------------- 1 | [ 2 | { 3 | "FieldName": "Date", 4 | "FieldValue": "2022-07-17 04:45AM UTC" 5 | }, 6 | { 7 | "FieldName": "Account billed", 8 | "FieldValue": "John Doe (john.doe@example.com)" 9 | }, 10 | { 11 | "FieldName": "Description", 12 | "FieldValue": "Streaming Service" 13 | }, 14 | { 15 | "FieldName": "Service Period", 16 | "FieldValue": "2022-07-17 - 2022-08-16" 17 | }, 18 | { 19 | "FieldName": "Total", 20 | "FieldValue": "$15.49" 21 | }, 22 | { 23 | "FieldName": "Charged to", 24 | "FieldValue": "American Express (3*** ****** *5072)" 25 | }, 26 | { 27 | "FieldName": "Transaction ID", 28 | "FieldValue": "XDR678W" 29 | } 30 | ] -------------------------------------------------------------------------------- /templates/receipt/templates/main.tpl: -------------------------------------------------------------------------------- 1 | {{define "table-cell-paragraph"}} 2 | 3 | 4 | {{.}} 5 | 6 | 7 | {{end}} 8 | 9 | 10 | 11 | {{.Title}} 12 | 13 | 14 | 15 | 16 | 17 | Membership fees are billed at the beginning of each period 18 | and may take a few days after the billing date to appear on your account. Sales tax may apply. 19 | Thanks for staying with us! 20 | If you have any questions, please contact 21 | support@unidocprovider.com 22 | . 23 | 24 | 25 | 26 | {{range .Fields}} 27 | {{template "table-cell-paragraph" .FieldName}} 28 | {{template "table-cell-paragraph" .FieldValue}} 29 | {{end}} 30 |
31 | -------------------------------------------------------------------------------- /templates/receipt/templates/res/screenshot.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/receipt/templates/res/screenshot.png -------------------------------------------------------------------------------- /templates/receipt/templates/res/unidoc-logo.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/receipt/templates/res/unidoc-logo.png -------------------------------------------------------------------------------- /templates/receipt/unipdf-receipt.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/receipt/unipdf-receipt.pdf -------------------------------------------------------------------------------- /templates/rental-agreement/README.md: -------------------------------------------------------------------------------- 1 | Sample rental agreement 2 | ====================== 3 | 4 | This example showcases the usage of creator templates by creating a sample 5 | rental agreement. 6 | 7 |

8 | sample-rental-agreement-preview 9 |

10 | 11 | -------------------------------------------------------------------------------- /templates/rental-agreement/templates/footer.tpl: -------------------------------------------------------------------------------- 1 | 2 | 3 | {{if gt 10 .PageNum}} 4 | 5 | {{end}} 6 | 7 | 8 |
9 | 10 | {{if gt 10 .PageNum}} 11 | 12 | 13 | Initials 14 | 15 | 16 | 17 | {{end}} 18 | 19 |
20 | 21 | 22 | 23 | 24 | {{if gt 10 .PageNum}} 25 | 26 | https://unidoc.io 27 | 28 | {{end}} 29 | 30 | 31 | {{if gt 10 .PageNum}} 32 | 33 | 34 | 35 | {{end}} 36 | 37 | 38 | 39 | Page {{.PageNum}} 40 | 41 | 42 |
43 | 44 | -------------------------------------------------------------------------------- /templates/rental-agreement/templates/header.tpl: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 |
5 | 6 | 7 | 8 | 9 | 10 | UniDOC Land 11 | Company 12 | 13 | 14 |
15 | 16 | 17 | 18 | -------------------------------------------------------------------------------- /templates/rental-agreement/templates/res/arialbd.ttf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/rental-agreement/templates/res/arialbd.ttf -------------------------------------------------------------------------------- /templates/rental-agreement/templates/res/house.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/rental-agreement/templates/res/house.png -------------------------------------------------------------------------------- /templates/rental-agreement/templates/res/logo.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/rental-agreement/templates/res/logo.png -------------------------------------------------------------------------------- /templates/rental-agreement/templates/res/pages.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/rental-agreement/templates/res/pages.png -------------------------------------------------------------------------------- /templates/rental-agreement/templates/res/qr.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/rental-agreement/templates/res/qr.png -------------------------------------------------------------------------------- /templates/rental-agreement/unipdf-rental-agreement.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/rental-agreement/unipdf-rental-agreement.pdf -------------------------------------------------------------------------------- /templates/security-report/README.md: -------------------------------------------------------------------------------- 1 | Sample security report 2 | ====================== 3 | 4 | This example showcases the usage of creator templates by creating a sample 5 | security report. 6 | 7 |

8 | sample-security-report-preview 9 |

10 | -------------------------------------------------------------------------------- /templates/security-report/templates/footer.tpl: -------------------------------------------------------------------------------- 1 | 2 | 3 | This report has been prepared for Acme. It is for illustrative purposes only and UniPDF is not responsible for any decisions or actions taken based on this information. 4 | Copyright ©2022 UniPDF Inc. Confidential and Proprietary. 5 | 6 | 7 | Page {{.PageNum}} of {{.TotalPages}} 8 | 9 | -------------------------------------------------------------------------------- /templates/security-report/templates/front-page.tpl: -------------------------------------------------------------------------------- 1 | 2 | Security Report 3 | 4 | 5 | Sample report created using creator templates 6 | 7 | -------------------------------------------------------------------------------- /templates/security-report/templates/header.tpl: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
9 | 10 | -------------------------------------------------------------------------------- /templates/security-report/templates/res/hero.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/security-report/templates/res/hero.png -------------------------------------------------------------------------------- /templates/security-report/templates/res/logo.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/security-report/templates/res/logo.png -------------------------------------------------------------------------------- /templates/security-report/templates/res/page1.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/security-report/templates/res/page1.png -------------------------------------------------------------------------------- /templates/security-report/templates/res/pages.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/security-report/templates/res/pages.png -------------------------------------------------------------------------------- /templates/security-report/unipdf-security-report.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/security-report/unipdf-security-report.pdf -------------------------------------------------------------------------------- /templates/trade-confirmation/README.md: -------------------------------------------------------------------------------- 1 | Sample trade confirmation document 2 | ================================== 3 | 4 | This example showcases the usage of creator templates by creating a sample 5 | trade confirmation document. 6 | 7 |

8 | sample-trade-confirmation-preview 9 |

10 | -------------------------------------------------------------------------------- /templates/trade-confirmation/templates/res/screenshot.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/trade-confirmation/templates/res/screenshot.png -------------------------------------------------------------------------------- /templates/trade-confirmation/trade.json: -------------------------------------------------------------------------------- 1 | { 2 | "date": "May 21, 2021", 3 | "accountNumber": "1234567890", 4 | "userName": "Jane Doe", 5 | "userAddress": "123 Retail Customer Street\nPortland, ME 12345", 6 | "actionName": "Buy", 7 | "productDesc": "CUSIP 99999999 SCHOOL DISTRICT BOND Unlimited Tax General Obligation 3.25% Due 04/01/36", 8 | "boughtUnit": "15,000", 9 | "boughtPrice": "100,000", 10 | "orderNumber": "0000001", 11 | "data": { 12 | "principalAmount": "$15,000.00", 13 | "accruedInterest": "$70.42", 14 | "transactionFee": "$4.95", 15 | "total": "$15,075,37", 16 | "bankQualified": "No", 17 | "state": "ME", 18 | "datedToDate": "04/01/1996", 19 | "yieldToMaturity": "3.25", 20 | "yieldToCall": "3.25", 21 | "callable": "04 / 01 / 27 @100", 22 | "taxExcempt": "Yes", 23 | "capacity": "Principal", 24 | "bondForm": "Book Entry", 25 | "tradeDate": "05/21/2021", 26 | "tradeTime": "2:55 PM", 27 | "settlementDate": "05/23/2021" 28 | }, 29 | "markupValue": "$150.00", 30 | "infoUrl": "https://emma.msjjb.org/CUSIP/999999999" 31 | } -------------------------------------------------------------------------------- /templates/trade-confirmation/unipdf-trade-confirmation.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/trade-confirmation/unipdf-trade-confirmation.pdf -------------------------------------------------------------------------------- /templates/warehouse-shipment-report/README.md: -------------------------------------------------------------------------------- 1 | Sample warehouse shipment report 2 | ================================ 3 | 4 | This example showcases the usage of creator templates by creating a sample warehouse shipment report. 5 | 6 |

7 | sample-warehouse-shipment-report-preview 8 |

9 | -------------------------------------------------------------------------------- /templates/warehouse-shipment-report/templates/header.tpl: -------------------------------------------------------------------------------- 1 | {{define "company-info"}} 2 | 3 | {{ . }} 4 | 5 | {{end}} 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | {{ .Brand }} 16 | 17 | 18 | 19 | 20 | 21 | {{template "company-info" .Name }} 22 | {{template "company-info" .Address }} 23 | {{template "company-info" (printf "%s, %s" .Area .City) }} 24 | {{template "company-info" .Country }} 25 | 26 | 27 | 28 | 29 | 30 | Warehouse shipments 31 | 32 | 33 |
34 | -------------------------------------------------------------------------------- /templates/warehouse-shipment-report/templates/res/logo.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/warehouse-shipment-report/templates/res/logo.png -------------------------------------------------------------------------------- /templates/warehouse-shipment-report/templates/res/screenshot.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/warehouse-shipment-report/templates/res/screenshot.png -------------------------------------------------------------------------------- /templates/warehouse-shipment-report/unipdf-warehouse-shipment-report.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/templates/warehouse-shipment-report/unipdf-warehouse-shipment-report.pdf -------------------------------------------------------------------------------- /testing/README.md: -------------------------------------------------------------------------------- 1 | # PDF Testing Examples 2 | 3 | The example explains how you can use UniPDF to test your PDF documents for any errors. The examples run through the documents and check for any errors produced. 4 | 5 | ## Examples 6 | 7 | - [pdf_count_color_pages_bench.go](pdf_count_color_pages_bench.go) The example detects the number of pages and the color pages (1-offset) all pages in a list of PDF files. Compares these results to running Ghostscript on the PDF files and reports an error if the results don't match. 8 | - [pdf_grayscale_convert_bench.go](pdf_grayscale_convert_bench.go) The example showcases how to transform all content streams in all pages in a list of pdf files. This will transform all .pdf file in testdata and write the results to output. 9 | - [pdf_passthrough_bench.go](pdf_passthrough_bench.go) The example showcases how to perform the pass through benchmark on all pdf files and write results to stdout. 10 | 11 | -------------------------------------------------------------------------------- /testing/formdata.json: -------------------------------------------------------------------------------- 1 | [ 2 | { 3 | "name": "formID", 4 | "value": "202286033286049" 5 | }, 6 | { 7 | "name": "pdf_submission_new", 8 | "value": "1" 9 | }, 10 | { 11 | "name": "simple_spc", 12 | "value": "202286033286049-202286033286049" 13 | }, 14 | { 15 | "name": "adobeWarning", 16 | "value": "In order to submit this form, you should open it with Adobe Acrobat Reader." 17 | }, 18 | { 19 | "name": "firstName", 20 | "value": "John" 21 | }, 22 | { 23 | "name": "lastName", 24 | "value": "Doe" 25 | }, 26 | { 27 | "name": "email", 28 | "value": "alpha@omega.com" 29 | }, 30 | { 31 | "name": "addressL1", 32 | "value": "高橋町鈴木5-4-1" 33 | }, 34 | { 35 | "name": "addressL2", 36 | "value": "-" 37 | }, 38 | { 39 | "name": "addressCity", 40 | "value": "小泉市" 41 | }, 42 | { 43 | "name": "addressState", 44 | "value": "-" 45 | }, 46 | { 47 | "name": "addressPostal", 48 | "value": "3538148" 49 | }, 50 | { 51 | "name": "buttonText", 52 | "value": "Submit" 53 | }, 54 | { 55 | "name": "submitButton", 56 | "value": "" 57 | } 58 | ] -------------------------------------------------------------------------------- /testing/sample_form.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/testing/sample_form.pdf -------------------------------------------------------------------------------- /text/README.md: -------------------------------------------------------------------------------- 1 | # PDF Text Examples 2 | 3 | The example explains how you can use UniPDF to perform a number of text manipulations such as detect signatures, extract and insert text. You can also search and replace text and find locations for specific text. Using UniPDF, you can also convert PDF to .csv files. 4 | 5 | ## Examples 6 | 7 | ### Generation 8 | - [pdf_cmyk_color.go](pdf_cmyk_color.go) The example showcase how to use CMYK color to colorize text. 9 | - [pdf_formatted_text.go](pdf_formatted_text.go) The example showcases the usage of styled paragraphs. The output is saved as styled_paragraph.pdf which illustrates some of the features of the creator. 10 | - [pdf_insert_text.go](pdf_insert_text.go) The example showcases how to insert text to a specific page, location in a PDF file. If unsure about position, try getting the dimensions of a PDF with pdf/pages/pdf_page_info.go first or start with 0,0 (upper left corner) and increase to move right, down. 11 | - [pdf_text_color.go](pdf_text_color.go) The example showcase how to use RGB and CMYK color to colorize text. 12 | - [pdf_using_unicode_font.go](pdf_using_unicode_font.go) The example illustrates how to use composite font (CJK font) file to render a text and subset the font to create a small output file. 13 | 14 | ### Extraction or modifying PDF 15 | - [pdf_detect_signature.go](pdf_detect_signature.go) The example highlights the basic functionality for text searching: Retrieving position of a signature line in PDF where the signature line is given by "__________________" text. And positioned with a Tm operation above. 16 | - [pdf_search_replace.go](pdf_search_replace.go) The example highlights a basic example of find and replace with UniPDF. 17 | - [pdf_text_locations.go](pdf_text_locations.go) The example highlights how to find mark up locations of substrings of extracted text in a PDF file. 18 | - [pdf_text_vertical_alignment.go](pdf_text_vertical_alignment.go) The example highlights an example of setting the vertical alignment of text chunks in a paragraph. 19 | - [pdf_to_csv.go](pdf_to_csv.go) The example is illustrating capability to extract TextMarks from PDF, and grouping together into words, rows and columns for CSV data extraction. The example includes debugging capabilities such as outputting a marked-up PDF showing bounding boxes of marks, words, lines and columns. 20 | -------------------------------------------------------------------------------- /text/Roboto-Regular.ttf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/text/Roboto-Regular.ttf -------------------------------------------------------------------------------- /text/rounded-mplus-1p-regular.ttf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/text/rounded-mplus-1p-regular.ttf -------------------------------------------------------------------------------- /text/styled_paragraph.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/text/styled_paragraph.pdf -------------------------------------------------------------------------------- /watermarks/README.md: -------------------------------------------------------------------------------- 1 | # PDF Images 2 | 3 | UniPDF allows you to add text or image watermarks in your PDF documents. The library also allows you to remove watermarks. 4 | 5 | ## Examples 6 | 7 | - [pdf_watermark_image.go](pdf_watermark_image.go) explains how to add watermark image to each page of a PDF file. 8 | - [pdf_add_text_watermark.go](pdf_add_text_watermark.go) explains how to add a text watermark to each page of a PDF file. 9 | - [pdf_remove_watermark_image.go](pdf_remove_watermark_image.go) explains how to remove watermark image from a PDF file. -------------------------------------------------------------------------------- /watermarks/Roboto-Regular.ttf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/watermarks/Roboto-Regular.ttf -------------------------------------------------------------------------------- /watermarks/pdf_add_text_watermark.go: -------------------------------------------------------------------------------- 1 | /* 2 | * An example of adding text watermark to pdf pages. 3 | * 4 | * Run as: go run pdf_add_text_watermark.go 5 | */ 6 | package main 7 | 8 | import ( 9 | "fmt" 10 | "image/color" 11 | "os" 12 | 13 | "github.com/unidoc/unipdf/v4/common/license" 14 | "github.com/unidoc/unipdf/v4/creator" 15 | "github.com/unidoc/unipdf/v4/model" 16 | ) 17 | 18 | func init() { 19 | // Make sure to load your metered License API key prior to using the library. 20 | // If you need a key, you can sign up and create a free one at https://cloud.unidoc.io 21 | err := license.SetMeteredKey(os.Getenv(`UNIDOC_LICENSE_API_KEY`)) 22 | if err != nil { 23 | panic(err) 24 | } 25 | } 26 | 27 | func main() { 28 | if len(os.Args) < 4 { 29 | fmt.Printf("Usage: go run pdf_add_text_watermark.go input.pdf watermark output.pdf\n") 30 | os.Exit(1) 31 | } 32 | 33 | inputPath := os.Args[1] 34 | watermark := os.Args[2] 35 | outputPath := os.Args[3] 36 | 37 | file, err := os.Open(inputPath) 38 | if err != nil { 39 | fmt.Printf("Error: %v\n", err) 40 | os.Exit(1) 41 | } 42 | defer file.Close() 43 | 44 | pdfReader, err := model.NewPdfReader(file) 45 | if err != nil { 46 | fmt.Printf("Error: %v\n", err) 47 | os.Exit(1) 48 | } 49 | 50 | c := creator.New() 51 | 52 | totalPageNumb, err := pdfReader.GetNumPages() 53 | if err != nil { 54 | fmt.Printf("Error: %v\n", err) 55 | os.Exit(1) 56 | } 57 | 58 | for i := 1; i <= totalPageNumb; i++ { 59 | page, err := pdfReader.GetPage(i) 60 | if err != nil { 61 | fmt.Printf("Error: failed to get page %d. %v\n", i, err) 62 | os.Exit(1) 63 | } 64 | options := model.WatermarkTextOptions{ 65 | Alpha: 0.3, 66 | FontSize: 40, 67 | FontPath: "Roboto-Regular.ttf", 68 | FontColor: color.RGBA{R: 255, G: 0, B: 0, A: 1}, 69 | Angle: 30, 70 | } 71 | 72 | err = page.AddWatermarkText(watermark, options) 73 | if err != nil { 74 | fmt.Printf("Error: failed to add watermark on page %d. %v\n", i, err) 75 | } 76 | 77 | c.AddPage(page) 78 | } 79 | 80 | c.WriteToFile(outputPath) 81 | fmt.Print("Watermark added successfully.\n") 82 | } 83 | -------------------------------------------------------------------------------- /watermarks/pdf_remove_watermark_image.go: -------------------------------------------------------------------------------- 1 | /* 2 | * Remove watermark image to each page of a PDF file. 3 | * 4 | * Run as: go run pdf_remove_watermark_image.go input.pdf output.pdf 5 | */ 6 | 7 | package main 8 | 9 | import ( 10 | "fmt" 11 | "os" 12 | 13 | "github.com/unidoc/unipdf/v4/common/license" 14 | "github.com/unidoc/unipdf/v4/model" 15 | ) 16 | 17 | func init() { 18 | // Make sure to load your metered License API key prior to using the library. 19 | // If you need a key, you can sign up and create a free one at https://cloud.unidoc.io 20 | err := license.SetMeteredKey(os.Getenv(`UNIDOC_LICENSE_API_KEY`)) 21 | if err != nil { 22 | panic(err) 23 | } 24 | } 25 | 26 | func main() { 27 | if len(os.Args) < 3 { 28 | fmt.Printf("go run pdf_remove_watermark_image.go input.pdf output.pdf\n") 29 | os.Exit(1) 30 | } 31 | 32 | inputPath := os.Args[1] 33 | outputPath := os.Args[2] 34 | 35 | pdfReader, f, err := model.NewPdfReaderFromFile(inputPath, nil) 36 | if err != nil { 37 | fmt.Printf("Error: %v\n", err) 38 | os.Exit(1) 39 | } 40 | defer f.Close() 41 | 42 | numPages, err := pdfReader.GetNumPages() 43 | if err != nil { 44 | fmt.Printf("Error: %v\n", err) 45 | os.Exit(1) 46 | } 47 | 48 | for i := 0; i < numPages; i++ { 49 | pageNum := i + 1 50 | 51 | // Read the page. 52 | page, err := pdfReader.GetPage(pageNum) 53 | if err != nil { 54 | fmt.Printf("Error: %v\n", err) 55 | os.Exit(1) 56 | } 57 | 58 | // For watermarks applied by Adobe, just pass nil as argument. 59 | // For custom watermarks use pdf_list_images.go to figure out the name of watermark object. 60 | err = page.RemoveWatermarkImage("Img1") 61 | if err != nil { 62 | fmt.Printf("Error: %v\n", err) 63 | os.Exit(1) 64 | } 65 | } 66 | 67 | // Generate a PDFWriter from PDFReader. 68 | pdfWriter, err := pdfReader.ToWriter(nil) 69 | if err != nil { 70 | fmt.Printf("Error: %v\n", err) 71 | os.Exit(1) 72 | } 73 | 74 | err = pdfWriter.WriteToFile(outputPath) 75 | if err != nil { 76 | fmt.Printf("Error: %v\n", err) 77 | os.Exit(1) 78 | } 79 | 80 | fmt.Printf("Complete, see output file: %s\n", outputPath) 81 | } 82 | -------------------------------------------------------------------------------- /watermarks/watermark_input.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/watermarks/watermark_input.pdf -------------------------------------------------------------------------------- /watermarks/watermark_output.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/watermarks/watermark_output.pdf -------------------------------------------------------------------------------- /writer/unidoc-file-modified.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/writer/unidoc-file-modified.pdf -------------------------------------------------------------------------------- /writer/unidoc-file.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/unidoc/unipdf-examples/722a2409c1eae388f507dd7cf2287b47d2ddd89b/writer/unidoc-file.pdf --------------------------------------------------------------------------------