├── .github └── workflows │ └── dotnet.yml ├── LICENSE ├── README.md ├── pdf └── TestPdf.pdf └── src ├── .editorconfig ├── .gitattributes ├── .gitignore ├── DtronixPdf.ImageSharp ├── DtronixPdf.ImageSharp.csproj └── PdfBitmapExtensions.cs ├── DtronixPdf.Tests ├── DtronixPdf.Tests.csproj ├── PdfDocumentTests.cs ├── PdfPageRenderTests.cs ├── PdfPageRendererTests │ └── pixel_test_1.png └── PdfPageTests.cs ├── DtronixPdf.props ├── DtronixPdf.sln ├── DtronixPdf ├── DtronixPdf.csproj ├── PDFiumManager.cs ├── PdfActionSynchronizer.cs ├── PdfBitmap.cs ├── PdfDocument.cs ├── PdfFileWriteCopyStream.cs ├── PdfPage.Edit.cs ├── PdfPage.cs ├── PdfPageRenderConfig.cs ├── PdfiumConfig.cs └── VectorHelpers.cs └── DtronixPdfBenchmark ├── DtronixPdfBenchmark.csproj └── Program.cs /.github/workflows/dotnet.yml: -------------------------------------------------------------------------------- 1 | name: Build, Pack & Publish 2 | 3 | on: 4 | push: 5 | branches: 6 | - '*' 7 | tags: 8 | - 'v*' 9 | pull_request: 10 | branches: 11 | - '*' 12 | 13 | jobs: 14 | build: 15 | runs-on: ubuntu-latest 16 | 17 | steps: 18 | - name: Checkout 19 | uses: actions/checkout@v4 20 | with: 21 | fetch-depth: 0 22 | submodules: true 23 | 24 | - name: Install .NET 25 | uses: actions/setup-dotnet@v4 26 | with: 27 | dotnet-version: 8.0.* 28 | source-url: https://api.nuget.org/v3/index.json 29 | env: 30 | NUGET_AUTH_TOKEN: ${{secrets.GITHUB_TOKEN}} 31 | 32 | - name: Build 33 | run: dotnet build src -c Release 34 | 35 | - name: Pack DtronixPdf 36 | run: dotnet pack src/DtronixPdf -c Release -o ./artifacts 37 | 38 | - name: Pack DtronixPdf.ImageSharp 39 | run: dotnet pack src/DtronixPdf.ImageSharp -c Release -o ./artifacts 40 | 41 | - name: Unit tests 42 | run: dotnet test src/DtronixPdf.Tests -c Release 43 | 44 | - name: Export artifacts 45 | uses: actions/upload-artifact@v4 46 | with: 47 | path: | 48 | artifacts/*.nupkg 49 | artifacts/*.snupkg 50 | 51 | - name: Get tag name 52 | if: startsWith(github.ref, 'refs/tags/') 53 | uses: olegtarasov/get-tag@v2.1 54 | id: tagName 55 | 56 | - name: Create release 57 | uses: softprops/action-gh-release@v1 58 | if: startsWith(github.ref, 'refs/tags/') 59 | with: 60 | name: "DtronixPdf ${{ steps.tagName.outputs.tag }} Released" 61 | files: | 62 | artifacts/*.nupkg 63 | artifacts/*.snupkg 64 | 65 | - name: Push Nuget packages 66 | if: startsWith(github.ref, 'refs/tags/') 67 | run: dotnet nuget push artifacts/*.nupkg --api-key ${{ secrets.ORG_NUGET_AUTH_TOKEN }} --skip-duplicate -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | MIT License 2 | 3 | Copyright (c) 2022 Dtronix 4 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy 6 | of this software and associated documentation files (the "Software"), to deal 7 | in the Software without restriction, including without limitation the rights 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 | copies of the Software, and to permit persons to whom the Software is 10 | furnished to do so, subject to the following conditions: 11 | 12 | The above copyright notice and this permission notice shall be included in all 13 | copies or substantial portions of the Software. 14 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 | SOFTWARE. -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # DtronixPdf [![NuGet](https://img.shields.io/nuget/v/DtronixPdf.svg?maxAge=60)](https://www.nuget.org/packages/DtronixPdf) [![Action Workflow](https://github.com/Dtronix/DtronixPdf/actions/workflows/dotnet.yml/badge.svg)](https://github.com/Dtronix/DtronixPdf/actions) 2 | 3 | DtronixPdf is a .NET 8.0 library to handle interactions with PDFs via the PDFium library which is inherently not thread safe. This library will serialize all calls which are made to the PDFium backend and execute them all on a single thread via a dispatcher. Results are then returned through Tasks to the calling site. 4 | 5 | Supports Linux-x64, OSX-x64, Win-x64, Win-x86. 6 | 7 | [Project Roadmap](https://github.com/orgs/Dtronix/projects/1) 8 | 9 | ### Usage 10 | 11 | - [Nuget Package](https://www.nuget.org/packages/DtronixPdf). 12 | - Manual building. `dotnet build -c Release` 13 | 14 | ### Build Requirements 15 | - .NET 8.0 16 | 17 | ### References 18 | 19 | - https://github.com/Dtronix/PDFiumCore 20 | - https://pdfium.googlesource.com/pdfium/ 21 | - https://github.com/bblanchon/pdfium-binaries 22 | - https://github.com/mono/CppSharp 23 | 24 | ### License 25 | [MIT](LICENSE) License -------------------------------------------------------------------------------- /pdf/TestPdf.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Dtronix/DtronixPdf/4751c6f1ea928dacb9c96969057f968f070405bd/pdf/TestPdf.pdf -------------------------------------------------------------------------------- /src/.editorconfig: -------------------------------------------------------------------------------- 1 | # To learn more about .editorconfig see https://aka.ms/editorconfigdocs 2 | ############################### 3 | # Core EditorConfig Options # 4 | ############################### 5 | root = true 6 | # All files 7 | [*] 8 | indent_style = space 9 | 10 | # XML project files 11 | [*.{csproj,vbproj,vcxproj,vcxproj.filters,proj,projitems,shproj}] 12 | indent_size = 2 13 | 14 | # XML config files 15 | [*.{props,targets,ruleset,config,nuspec,resx,vsixmanifest,vsct}] 16 | indent_size = 2 17 | 18 | # Code files 19 | [*.{cs,csx,vb,vbx}] 20 | indent_size = 4 21 | insert_final_newline = true 22 | charset = utf-8-bom 23 | ############################### 24 | # .NET Coding Conventions # 25 | ############################### 26 | [*.{cs,vb}] 27 | # Organize usings 28 | dotnet_sort_system_directives_first = true 29 | # this. preferences 30 | dotnet_style_qualification_for_field = false:silent 31 | dotnet_style_qualification_for_property = false:silent 32 | dotnet_style_qualification_for_method = false:silent 33 | dotnet_style_qualification_for_event = false:silent 34 | # Language keywords vs BCL types preferences 35 | dotnet_style_predefined_type_for_locals_parameters_members = true:silent 36 | dotnet_style_predefined_type_for_member_access = true:silent 37 | # Parentheses preferences 38 | dotnet_style_parentheses_in_arithmetic_binary_operators = always_for_clarity:silent 39 | dotnet_style_parentheses_in_relational_binary_operators = always_for_clarity:silent 40 | dotnet_style_parentheses_in_other_binary_operators = always_for_clarity:silent 41 | dotnet_style_parentheses_in_other_operators = never_if_unnecessary:silent 42 | # Modifier preferences 43 | dotnet_style_require_accessibility_modifiers = for_non_interface_members:silent 44 | dotnet_style_readonly_field = true:suggestion 45 | # Expression-level preferences 46 | dotnet_style_object_initializer = true:suggestion 47 | dotnet_style_collection_initializer = true:suggestion 48 | dotnet_style_explicit_tuple_names = true:suggestion 49 | dotnet_style_null_propagation = true:suggestion 50 | dotnet_style_coalesce_expression = true:suggestion 51 | dotnet_style_prefer_is_null_check_over_reference_equality_method = true:silent 52 | dotnet_style_prefer_inferred_tuple_names = true:suggestion 53 | dotnet_style_prefer_inferred_anonymous_type_member_names = true:suggestion 54 | dotnet_style_prefer_auto_properties = true:silent 55 | dotnet_style_prefer_conditional_expression_over_assignment = true:silent 56 | dotnet_style_prefer_conditional_expression_over_return = true:silent 57 | ############################### 58 | # Naming Conventions # 59 | ############################### 60 | # Style Definitions 61 | dotnet_naming_style.pascal_case_style.capitalization = pascal_case 62 | # Use PascalCase for constant fields 63 | dotnet_naming_rule.constant_fields_should_be_pascal_case.severity = suggestion 64 | dotnet_naming_rule.constant_fields_should_be_pascal_case.symbols = constant_fields 65 | dotnet_naming_rule.constant_fields_should_be_pascal_case.style = pascal_case_style 66 | dotnet_naming_symbols.constant_fields.applicable_kinds = field 67 | dotnet_naming_symbols.constant_fields.applicable_accessibilities = * 68 | dotnet_naming_symbols.constant_fields.required_modifiers = const 69 | # Private Fields 70 | dotnet_naming_rule.private_members_with_underscore.symbols = private_fields 71 | dotnet_naming_rule.private_members_with_underscore.style = prefix_underscore 72 | dotnet_naming_rule.private_members_with_underscore.severity = suggestion 73 | dotnet_naming_symbols.private_fields.applicable_kinds = field 74 | dotnet_naming_symbols.private_fields.applicable_accessibilities = private 75 | dotnet_naming_symbols.private_fields.required_modifiers = readonly 76 | 77 | dotnet_naming_style.prefix_underscore.capitalization = camel_case 78 | dotnet_naming_style.prefix_underscore.required_prefix = _ 79 | dotnet_style_operator_placement_when_wrapping = beginning_of_line 80 | tab_width = 4 81 | end_of_line = crlf 82 | dotnet_style_prefer_simplified_boolean_expressions = true:suggestion 83 | ############################### 84 | # C# Coding Conventions # 85 | ############################### 86 | [*.cs] 87 | # var preferences 88 | csharp_style_var_for_built_in_types = true:silent 89 | csharp_style_var_when_type_is_apparent = true:silent 90 | csharp_style_var_elsewhere = true:silent 91 | # Expression-bodied members 92 | csharp_style_expression_bodied_methods = false:silent 93 | csharp_style_expression_bodied_constructors = false:silent 94 | csharp_style_expression_bodied_operators = false:silent 95 | csharp_style_expression_bodied_properties = true:silent 96 | csharp_style_expression_bodied_indexers = true:silent 97 | csharp_style_expression_bodied_accessors = true:silent 98 | # Pattern matching preferences 99 | csharp_style_pattern_matching_over_is_with_cast_check = true:suggestion 100 | csharp_style_pattern_matching_over_as_with_null_check = true:suggestion 101 | # Null-checking preferences 102 | csharp_style_throw_expression = true:suggestion 103 | csharp_style_conditional_delegate_call = true:suggestion 104 | # Modifier preferences 105 | csharp_preferred_modifier_order = public,private,protected,internal,static,extern,new,virtual,abstract,sealed,override,readonly,unsafe,volatile,async:suggestion 106 | # Expression-level preferences 107 | csharp_prefer_braces = true:silent 108 | csharp_style_deconstructed_variable_declaration = true:suggestion 109 | csharp_prefer_simple_default_expression = true:suggestion 110 | csharp_style_pattern_local_over_anonymous_function = true:suggestion 111 | csharp_style_inlined_variable_declaration = true:suggestion 112 | ############################### 113 | # C# Formatting Rules # 114 | ############################### 115 | # New line preferences 116 | csharp_new_line_before_open_brace = all 117 | csharp_new_line_before_else = true 118 | csharp_new_line_before_catch = true 119 | csharp_new_line_before_finally = true 120 | csharp_new_line_before_members_in_object_initializers = true 121 | csharp_new_line_before_members_in_anonymous_types = true 122 | csharp_new_line_between_query_expression_clauses = true 123 | # Indentation preferences 124 | csharp_indent_case_contents = true 125 | csharp_indent_switch_labels = true 126 | csharp_indent_labels = flush_left 127 | # Space preferences 128 | csharp_space_after_cast = false 129 | csharp_space_after_keywords_in_control_flow_statements = true 130 | csharp_space_between_method_call_parameter_list_parentheses = false 131 | csharp_space_between_method_declaration_parameter_list_parentheses = false 132 | csharp_space_between_parentheses = false 133 | csharp_space_before_colon_in_inheritance_clause = true 134 | csharp_space_after_colon_in_inheritance_clause = true 135 | csharp_space_around_binary_operators = before_and_after 136 | csharp_space_between_method_declaration_empty_parameter_list_parentheses = false 137 | csharp_space_between_method_call_name_and_opening_parenthesis = false 138 | csharp_space_between_method_call_empty_parameter_list_parentheses = false 139 | # Wrapping preferences 140 | csharp_preserve_single_line_statements = true 141 | csharp_preserve_single_line_blocks = true 142 | csharp_using_directive_placement = outside_namespace:silent 143 | csharp_prefer_simple_using_statement = true:suggestion 144 | csharp_style_namespace_declarations = block_scoped:silent 145 | csharp_style_prefer_method_group_conversion = true:silent 146 | csharp_style_prefer_top_level_statements = true:silent 147 | csharp_style_expression_bodied_lambdas = true:silent 148 | csharp_style_expression_bodied_local_functions = false:silent -------------------------------------------------------------------------------- /src/.gitattributes: -------------------------------------------------------------------------------- 1 | ############################################################################### 2 | # Set default behavior to automatically normalize line endings. 3 | ############################################################################### 4 | * text=auto 5 | 6 | ############################################################################### 7 | # Set default behavior for command prompt diff. 8 | # 9 | # This is need for earlier builds of msysgit that does not have it on by 10 | # default for csharp files. 11 | # Note: This is only used by command line 12 | ############################################################################### 13 | #*.cs diff=csharp 14 | 15 | ############################################################################### 16 | # Set the merge driver for project and solution files 17 | # 18 | # Merging from the command prompt will add diff markers to the files if there 19 | # are conflicts (Merging from VS is not affected by the settings below, in VS 20 | # the diff markers are never inserted). Diff markers may cause the following 21 | # file extensions to fail to load in VS. An alternative would be to treat 22 | # these files as binary and thus will always conflict and require user 23 | # intervention with every merge. To do so, just uncomment the entries below 24 | ############################################################################### 25 | #*.sln merge=binary 26 | #*.csproj merge=binary 27 | #*.vbproj merge=binary 28 | #*.vcxproj merge=binary 29 | #*.vcproj merge=binary 30 | #*.dbproj merge=binary 31 | #*.fsproj merge=binary 32 | #*.lsproj merge=binary 33 | #*.wixproj merge=binary 34 | #*.modelproj merge=binary 35 | #*.sqlproj merge=binary 36 | #*.wwaproj merge=binary 37 | 38 | ############################################################################### 39 | # behavior for image files 40 | # 41 | # image files are treated as binary by default. 42 | ############################################################################### 43 | #*.jpg binary 44 | #*.png binary 45 | #*.gif binary 46 | 47 | ############################################################################### 48 | # diff behavior for common document formats 49 | # 50 | # Convert binary document formats to text before diffing them. This feature 51 | # is only available from the command line. Turn it on by uncommenting the 52 | # entries below. 53 | ############################################################################### 54 | #*.doc diff=astextplain 55 | #*.DOC diff=astextplain 56 | #*.docx diff=astextplain 57 | #*.DOCX diff=astextplain 58 | #*.dot diff=astextplain 59 | #*.DOT diff=astextplain 60 | #*.pdf diff=astextplain 61 | #*.PDF diff=astextplain 62 | #*.rtf diff=astextplain 63 | #*.RTF diff=astextplain 64 | -------------------------------------------------------------------------------- /src/.gitignore: -------------------------------------------------------------------------------- 1 | ## Ignore Visual Studio temporary files, build results, and 2 | ## files generated by popular Visual Studio add-ons. 3 | 4 | # User-specific files 5 | *.suo 6 | *.user 7 | *.userosscache 8 | *.sln.docstates 9 | 10 | # User-specific files (MonoDevelop/Xamarin Studio) 11 | *.userprefs 12 | 13 | # Build results 14 | [Dd]ebug/ 15 | [Dd]ebugPublic/ 16 | [Rr]elease/ 17 | [Rr]eleases/ 18 | x64/ 19 | x86/ 20 | bld/ 21 | [Bb]in/ 22 | [Oo]bj/ 23 | [Ll]og/ 24 | 25 | # Visual Studio 2015 cache/options directory 26 | .vs/ 27 | # Uncomment if you have tasks that create the project's static files in wwwroot 28 | #wwwroot/ 29 | 30 | # MSTest test Results 31 | [Tt]est[Rr]esult*/ 32 | [Bb]uild[Ll]og.* 33 | 34 | # NUNIT 35 | *.VisualState.xml 36 | TestResult.xml 37 | 38 | # Build Results of an ATL Project 39 | [Dd]ebugPS/ 40 | [Rr]eleasePS/ 41 | dlldata.c 42 | 43 | # DNX 44 | project.lock.json 45 | project.fragment.lock.json 46 | artifacts/ 47 | 48 | *_i.c 49 | *_p.c 50 | *_i.h 51 | *.ilk 52 | *.meta 53 | *.obj 54 | *.pch 55 | *.pdb 56 | *.pgc 57 | *.pgd 58 | *.rsp 59 | *.sbr 60 | *.tlb 61 | *.tli 62 | *.tlh 63 | *.tmp 64 | *.tmp_proj 65 | *.log 66 | *.vspscc 67 | *.vssscc 68 | .builds 69 | *.pidb 70 | *.svclog 71 | *.scc 72 | 73 | # Chutzpah Test files 74 | _Chutzpah* 75 | 76 | # Visual C++ cache files 77 | ipch/ 78 | *.aps 79 | *.ncb 80 | *.opendb 81 | *.opensdf 82 | *.sdf 83 | *.cachefile 84 | *.VC.db 85 | *.VC.VC.opendb 86 | 87 | # Visual Studio profiler 88 | *.psess 89 | *.vsp 90 | *.vspx 91 | *.sap 92 | 93 | # TFS 2012 Local Workspace 94 | $tf/ 95 | 96 | # Guidance Automation Toolkit 97 | *.gpState 98 | 99 | # ReSharper is a .NET coding add-in 100 | _ReSharper*/ 101 | *.[Rr]e[Ss]harper 102 | *.DotSettings.user 103 | 104 | # JustCode is a .NET coding add-in 105 | .JustCode 106 | 107 | # TeamCity is a build add-in 108 | _TeamCity* 109 | 110 | # DotCover is a Code Coverage Tool 111 | *.dotCover 112 | 113 | # NCrunch 114 | _NCrunch_* 115 | .*crunch*.local.xml 116 | nCrunchTemp_* 117 | 118 | # MightyMoose 119 | *.mm.* 120 | AutoTest.Net/ 121 | 122 | # Web workbench (sass) 123 | .sass-cache/ 124 | 125 | # Installshield output folder 126 | [Ee]xpress/ 127 | 128 | # DocProject is a documentation generator add-in 129 | DocProject/buildhelp/ 130 | DocProject/Help/*.HxT 131 | DocProject/Help/*.HxC 132 | DocProject/Help/*.hhc 133 | DocProject/Help/*.hhk 134 | DocProject/Help/*.hhp 135 | DocProject/Help/Html2 136 | DocProject/Help/html 137 | 138 | # Click-Once directory 139 | publish/ 140 | 141 | # Publish Web Output 142 | *.[Pp]ublish.xml 143 | *.azurePubxml 144 | # TODO: Comment the next line if you want to checkin your web deploy settings 145 | # but database connection strings (with potential passwords) will be unencrypted 146 | #*.pubxml 147 | *.publishproj 148 | 149 | # Microsoft Azure Web App publish settings. Comment the next line if you want to 150 | # checkin your Azure Web App publish settings, but sensitive information contained 151 | # in these scripts will be unencrypted 152 | PublishScripts/ 153 | 154 | # NuGet Packages 155 | *.nupkg 156 | # The packages folder can be ignored because of Package Restore 157 | **/packages/* 158 | # except build/, which is used as an MSBuild target. 159 | !**/packages/build/ 160 | # Uncomment if necessary however generally it will be regenerated when needed 161 | #!**/packages/repositories.config 162 | # NuGet v3's project.json files produces more ignoreable files 163 | *.nuget.props 164 | *.nuget.targets 165 | 166 | # Microsoft Azure Build Output 167 | csx/ 168 | *.build.csdef 169 | 170 | # Microsoft Azure Emulator 171 | ecf/ 172 | rcf/ 173 | 174 | # Windows Store app package directories and files 175 | AppPackages/ 176 | BundleArtifacts/ 177 | Package.StoreAssociation.xml 178 | _pkginfo.txt 179 | 180 | # Visual Studio cache files 181 | # files ending in .cache can be ignored 182 | *.[Cc]ache 183 | # but keep track of directories ending in .cache 184 | !*.[Cc]ache/ 185 | 186 | # Others 187 | ClientBin/ 188 | ~$* 189 | *~ 190 | *.dbmdl 191 | *.dbproj.schemaview 192 | *.jfm 193 | *.pfx 194 | *.publishsettings 195 | node_modules/ 196 | orleans.codegen.cs 197 | 198 | # Since there are multiple workflows, uncomment next line to ignore bower_components 199 | # (https://github.com/github/gitignore/pull/1529#issuecomment-104372622) 200 | #bower_components/ 201 | 202 | # RIA/Silverlight projects 203 | Generated_Code/ 204 | 205 | # Backup & report files from converting an old project file 206 | # to a newer Visual Studio version. Backup files are not needed, 207 | # because we have git ;-) 208 | _UpgradeReport_Files/ 209 | UpgradeLog*.XML 210 | UpgradeLog*.htm 211 | 212 | # SQL Server files 213 | *.mdf 214 | *.ldf 215 | 216 | # Business Intelligence projects 217 | *.rdl.data 218 | *.bim.layout 219 | *.bim_*.settings 220 | 221 | # Microsoft Fakes 222 | FakesAssemblies/ 223 | 224 | # GhostDoc plugin setting file 225 | *.GhostDoc.xml 226 | 227 | # Node.js Tools for Visual Studio 228 | .ntvs_analysis.dat 229 | 230 | # Visual Studio 6 build log 231 | *.plg 232 | 233 | # Visual Studio 6 workspace options file 234 | *.opt 235 | 236 | # Visual Studio LightSwitch build output 237 | **/*.HTMLClient/GeneratedArtifacts 238 | **/*.DesktopClient/GeneratedArtifacts 239 | **/*.DesktopClient/ModelManifest.xml 240 | **/*.Server/GeneratedArtifacts 241 | **/*.Server/ModelManifest.xml 242 | _Pvt_Extensions 243 | 244 | # Paket dependency manager 245 | .paket/paket.exe 246 | paket-files/ 247 | 248 | # FAKE - F# Make 249 | .fake/ 250 | 251 | # JetBrains Rider 252 | .idea/ 253 | *.sln.iml 254 | 255 | # CodeRush 256 | .cr/ 257 | 258 | # Python Tools for Visual Studio (PTVS) 259 | __pycache__/ 260 | *.pyc -------------------------------------------------------------------------------- /src/DtronixPdf.ImageSharp/DtronixPdf.ImageSharp.csproj: -------------------------------------------------------------------------------- 1 |  2 | 3 | 4 | ImageSharp bindings for DtronixPdf 5 | 1.2.0.0 6 | 7 | 8 | net8.0 9 | enable 10 | enable 11 | true 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | -------------------------------------------------------------------------------- /src/DtronixPdf.ImageSharp/PdfBitmapExtensions.cs: -------------------------------------------------------------------------------- 1 | using SixLabors.ImageSharp.PixelFormats; 2 | using SixLabors.ImageSharp; 3 | 4 | namespace DtronixPdf.ImageSharp 5 | { 6 | public static class PdfBitmapExtensions 7 | { 8 | public static unsafe Image GetImage(this PdfBitmap bitmap) 9 | { 10 | return Image.WrapMemory( 11 | bitmap.Pointer.ToPointer(), 12 | (int)(bitmap.Viewport[2] - bitmap.Viewport[0]), 13 | (int)(bitmap.Viewport[3] - bitmap.Viewport[1])); 14 | } 15 | 16 | } 17 | } 18 | -------------------------------------------------------------------------------- /src/DtronixPdf.Tests/DtronixPdf.Tests.csproj: -------------------------------------------------------------------------------- 1 |  2 | 3 | 4 | net8.0 5 | false 6 | 7 | 8 | 9 | 10 | PreserveNewest 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | PreserveNewest 28 | 29 | 30 | 31 | 32 | -------------------------------------------------------------------------------- /src/DtronixPdf.Tests/PdfDocumentTests.cs: -------------------------------------------------------------------------------- 1 | using System.IO; 2 | using System.Threading.Tasks; 3 | using NUnit.Framework; 4 | 5 | namespace DtronixPdf.Tests 6 | { 7 | public class PdfDocumentTests 8 | { 9 | [Test] 10 | public void LoadsDocument() 11 | { 12 | using var document = PdfDocument.Load("TestPdf.pdf", null); 13 | Assert.AreEqual(1, document.Pages); 14 | } 15 | 16 | [Test] 17 | public void LoadsMemoryDocument() 18 | { 19 | using var stream = File.OpenRead("TestPdf.pdf"); 20 | using var document = PdfDocument.Load(stream, null); 21 | Assert.AreEqual(1, document.Pages); 22 | } 23 | 24 | [Test] 25 | public void SavesDocument() 26 | { 27 | using var document = PdfDocument.Load("TestPdf.pdf", null); 28 | using var sw = new MemoryStream(); 29 | document.Save(sw); 30 | 31 | Assert.Greater(sw.Length, 10000); 32 | } 33 | 34 | 35 | } 36 | } 37 | -------------------------------------------------------------------------------- /src/DtronixPdf.Tests/PdfPageRenderTests.cs: -------------------------------------------------------------------------------- 1 | using System.Drawing; 2 | using System.IO; 3 | using System.Net.Mime; 4 | using System.Threading; 5 | using System.Threading.Tasks; 6 | using DtronixPdf.ImageSharp; 7 | using NUnit.Framework; 8 | using PDFiumCore; 9 | using SixLabors.ImageSharp.Formats.Png; 10 | using SixLabors.ImageSharp.PixelFormats; 11 | 12 | namespace DtronixPdf.Tests 13 | { 14 | public class PdfPageRenderTests 15 | { 16 | [Test] 17 | public void RendererCreatesImageSize() 18 | { 19 | using var document = PdfDocument.Load("TestPdf.pdf", null); 20 | using var page = document.GetPage(0); 21 | var renderPage = page.Render(1); 22 | var image = renderPage.GetImage(); 23 | 24 | Assert.AreEqual(page.Width, image.Width); 25 | Assert.AreEqual(page.Height, image.Height); 26 | } 27 | 28 | [Test] 29 | public void RendererSavesImage() 30 | { 31 | using var document = PdfDocument.Load("TestPdf.pdf", null); 32 | using var page = document.GetPage(0); 33 | var renderPage = page.Render(1); 34 | 35 | using var writer = File.OpenWrite("test.png"); 36 | renderPage.GetImage().Save(writer, new PngEncoder()); 37 | } 38 | 39 | /* 40 | public void PixelTest_1() 41 | { 42 | using var document = PdfDocument.Load("TestPdf.pdf", null); 43 | using var page = document.GetPage(0); 44 | using var expectedImageStream = File.OpenRead("PdfPageRendererTests/pixel_test_1.png"); 45 | using var expectedImage = MediaTypeNames.Image.Load(expectedImageStream, new PngDecoder()); 46 | 47 | var renderPage = page.Render( 48 | 1, 49 | (uint)Color.White.ToArgb(), 50 | new BoundaryF(522, 477, 3, 3)); 51 | 52 | var renderPage2 = page.Render( 53 | 1, 54 | (uint)Color.White.ToArgb(), 55 | new BoundaryF(522, 477, 30, 30)); 56 | 57 | renderPage2.Image.SaveAsPng("png1Crop.png"); 58 | 59 | var renderPage3 = page.Render(1, Color.White); 60 | 61 | renderPage3.Image.SaveAsPng("png1Full.png"); 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | var pageBitmap = page.Render(1, Color.White); 74 | 75 | for (int x = 0; x < 3; x++) 76 | { 77 | for (int y = 0; y < 3; y++) 78 | { 79 | Assert.AreEqual(expectedImage[x, y], pageBitmap.Image[x, y]); 80 | } 81 | } 82 | }*/ 83 | } 84 | } 85 | -------------------------------------------------------------------------------- /src/DtronixPdf.Tests/PdfPageRendererTests/pixel_test_1.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Dtronix/DtronixPdf/4751c6f1ea928dacb9c96969057f968f070405bd/src/DtronixPdf.Tests/PdfPageRendererTests/pixel_test_1.png -------------------------------------------------------------------------------- /src/DtronixPdf.Tests/PdfPageTests.cs: -------------------------------------------------------------------------------- 1 | using System.IO; 2 | using System.Threading.Tasks; 3 | using NUnit.Framework; 4 | using SixLabors.ImageSharp; 5 | 6 | namespace DtronixPdf.Tests 7 | { 8 | public class PdfPageTests 9 | { 10 | [Test] 11 | public void LoadsPage() 12 | { 13 | using var document = PdfDocument.Load("TestPdf.pdf", null); 14 | using var page = document.GetPage(0); 15 | } 16 | 17 | [Test] 18 | public void PageSizeIsReturned() 19 | { 20 | using var document = PdfDocument.Load("TestPdf.pdf", null); 21 | using var page = document.GetPage(0); 22 | Assert.AreEqual(new SizeF(792, 612), new SizeF(page.Width, page.Height)); 23 | } 24 | 25 | [Test] 26 | public void InitalIndexIsReturned() 27 | { 28 | using var document = PdfDocument.Load("TestPdf.pdf", null); 29 | using var page = document.GetPage(0); 30 | Assert.AreEqual(0, page.InitialIndex); 31 | } 32 | 33 | [Test] 34 | public void GetRotationReturnsCorrectValue() 35 | { 36 | using var document = PdfDocument.Load("TestPdf.pdf", null); 37 | using var page = document.GetPage(0); 38 | Assert.AreEqual(3, page.GetRotation()); 39 | } 40 | 41 | [Test] 42 | public void SetRotationSetsValue() 43 | { 44 | using var document = PdfDocument.Load("TestPdf.pdf", null); 45 | using var page = document.GetPage(0); 46 | page.SetRotation(1); 47 | Assert.AreEqual(1, page.GetRotation()); 48 | } 49 | 50 | [Test] 51 | public void GetTextReturnsText() 52 | { 53 | using var document = PdfDocument.Load("TestPdf.pdf", null); 54 | using var page = document.GetPage(0); 55 | 56 | string actual = page.GetText(0, 150, page.Width, 500); 57 | Assert.AreEqual("Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.", 58 | actual); 59 | } 60 | } 61 | } 62 | -------------------------------------------------------------------------------- /src/DtronixPdf.props: -------------------------------------------------------------------------------- 1 | 2 | 3 | net8.0 4 | true 5 | true 6 | Dtronix 7 | Dtronix PDF 8 | Copyright © Dtronix 2025 9 | DJGosnell 10 | https://github.com/Dtronix/DtronixPdf 11 | https://github.com/Dtronix/DtronixPdf 12 | MIT 13 | true 14 | pdf editor modify viewer export 15 | true 16 | snupkg 17 | true 18 | 19 | -------------------------------------------------------------------------------- /src/DtronixPdf.sln: -------------------------------------------------------------------------------- 1 |  2 | Microsoft Visual Studio Solution File, Format Version 12.00 3 | # Visual Studio Version 17 4 | VisualStudioVersion = 17.0.32014.148 5 | MinimumVisualStudioVersion = 10.0.40219.1 6 | Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "DtronixPdf", "DtronixPdf\DtronixPdf.csproj", "{23F0BD01-C9B9-4DC8-A444-978A4A91F5EE}" 7 | EndProject 8 | Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "DtronixPdf.Tests", "DtronixPdf.Tests\DtronixPdf.Tests.csproj", "{1FE9E658-7FBB-4C89-8173-05DC58A68DE1}" 9 | EndProject 10 | Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "DtronixPdfBenchmark", "DtronixPdfBenchmark\DtronixPdfBenchmark.csproj", "{2639F2B5-D7A0-4566-B00A-BBFF0181C27F}" 11 | EndProject 12 | Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "DtronixPdf.ImageSharp", "DtronixPdf.ImageSharp\DtronixPdf.ImageSharp.csproj", "{59A2B9DB-514C-4463-8AB8-3779B62FD99E}" 13 | EndProject 14 | Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution Items", "{E77BD9A3-165B-4B7B-A011-C79F7AB476D2}" 15 | ProjectSection(SolutionItems) = preProject 16 | .editorconfig = .editorconfig 17 | DtronixPdf.props = DtronixPdf.props 18 | EndProjectSection 19 | EndProject 20 | Global 21 | GlobalSection(SolutionConfigurationPlatforms) = preSolution 22 | Debug|Any CPU = Debug|Any CPU 23 | Release|Any CPU = Release|Any CPU 24 | EndGlobalSection 25 | GlobalSection(ProjectConfigurationPlatforms) = postSolution 26 | {23F0BD01-C9B9-4DC8-A444-978A4A91F5EE}.Debug|Any CPU.ActiveCfg = Debug|Any CPU 27 | {23F0BD01-C9B9-4DC8-A444-978A4A91F5EE}.Debug|Any CPU.Build.0 = Debug|Any CPU 28 | {23F0BD01-C9B9-4DC8-A444-978A4A91F5EE}.Release|Any CPU.ActiveCfg = Release|Any CPU 29 | {23F0BD01-C9B9-4DC8-A444-978A4A91F5EE}.Release|Any CPU.Build.0 = Release|Any CPU 30 | {1FE9E658-7FBB-4C89-8173-05DC58A68DE1}.Debug|Any CPU.ActiveCfg = Debug|Any CPU 31 | {1FE9E658-7FBB-4C89-8173-05DC58A68DE1}.Debug|Any CPU.Build.0 = Debug|Any CPU 32 | {1FE9E658-7FBB-4C89-8173-05DC58A68DE1}.Release|Any CPU.ActiveCfg = Release|Any CPU 33 | {1FE9E658-7FBB-4C89-8173-05DC58A68DE1}.Release|Any CPU.Build.0 = Release|Any CPU 34 | {2639F2B5-D7A0-4566-B00A-BBFF0181C27F}.Debug|Any CPU.ActiveCfg = Debug|Any CPU 35 | {2639F2B5-D7A0-4566-B00A-BBFF0181C27F}.Debug|Any CPU.Build.0 = Debug|Any CPU 36 | {2639F2B5-D7A0-4566-B00A-BBFF0181C27F}.Release|Any CPU.ActiveCfg = Release|Any CPU 37 | {2639F2B5-D7A0-4566-B00A-BBFF0181C27F}.Release|Any CPU.Build.0 = Release|Any CPU 38 | {59A2B9DB-514C-4463-8AB8-3779B62FD99E}.Debug|Any CPU.ActiveCfg = Debug|Any CPU 39 | {59A2B9DB-514C-4463-8AB8-3779B62FD99E}.Debug|Any CPU.Build.0 = Debug|Any CPU 40 | {59A2B9DB-514C-4463-8AB8-3779B62FD99E}.Release|Any CPU.ActiveCfg = Release|Any CPU 41 | {59A2B9DB-514C-4463-8AB8-3779B62FD99E}.Release|Any CPU.Build.0 = Release|Any CPU 42 | EndGlobalSection 43 | GlobalSection(SolutionProperties) = preSolution 44 | HideSolutionNode = FALSE 45 | EndGlobalSection 46 | GlobalSection(ExtensibilityGlobals) = postSolution 47 | SolutionGuid = {7762582E-0386-40D3-8B62-690FA06D560E} 48 | EndGlobalSection 49 | EndGlobal 50 | -------------------------------------------------------------------------------- /src/DtronixPdf/DtronixPdf.csproj: -------------------------------------------------------------------------------- 1 |  2 | 3 | 4 | Tool to view and perform common modifications to PDFs. Based on PDFium. 5 | 1.3.1.0 6 | 7 | 8 | true 9 | 10 | 11 | 12 | 13 | 14 | 15 | <_Parameter1>DtronixPdf.Tests 16 | 17 | 18 | 19 | 20 | 21 | 22 | -------------------------------------------------------------------------------- /src/DtronixPdf/PDFiumManager.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using System.Collections.Concurrent; 3 | using System.Collections.Generic; 4 | using PDFiumCore; 5 | 6 | namespace DtronixPdf 7 | { 8 | 9 | public class PdfiumManager 10 | { 11 | private static bool _isInitialized; 12 | 13 | private static PdfiumManager _managerDefaultInstance; 14 | public static PdfiumManager Default => _managerDefaultInstance ??= new PdfiumManager(); 15 | 16 | /// 17 | /// Gets the instance used to synchronize actions in a PDF document. 18 | /// 19 | public PdfActionSynchronizer Synchronizer { get; } 20 | 21 | private readonly ConcurrentDictionary _loadedDocuments = new (); 22 | 23 | private static readonly ConcurrentBag _loadedManagers = new (); 24 | 25 | private PdfiumManager() 26 | { 27 | _loadedManagers.Add(this); 28 | 29 | Synchronizer = new PdfActionSynchronizer(); 30 | } 31 | 32 | /// 33 | /// Initialized the PDFiumCore library. 34 | /// 35 | /// 36 | internal static void Initialize() 37 | { 38 | if (_isInitialized) 39 | return; 40 | 41 | _isInitialized = true; 42 | // Initialize the library. 43 | Default.Synchronizer.SyncExec(fpdfview.FPDF_InitLibrary); 44 | } 45 | 46 | public static void Unload() 47 | { 48 | if (!_isInitialized) 49 | return; 50 | 51 | foreach (var pdfiumCoreManager in _loadedManagers) 52 | { 53 | if (pdfiumCoreManager._loadedDocuments.Count > 0) 54 | throw new InvalidOperationException("Can't destroy loaded library since it is still in use by PdfDocument(s)"); 55 | } 56 | 57 | _isInitialized = false; 58 | 59 | Default.Synchronizer.SyncExec(fpdfview.FPDF_DestroyLibrary); 60 | } 61 | 62 | internal void AddDocument(PdfDocument document) 63 | { 64 | if (document == null) 65 | throw new ArgumentNullException(nameof(document)); 66 | 67 | lock (_loadedDocuments) 68 | { 69 | _loadedDocuments.TryAdd(document, document); 70 | } 71 | } 72 | 73 | internal void RemoveDocument(PdfDocument document) 74 | { 75 | if (document == null) 76 | throw new ArgumentNullException(nameof(document)); 77 | 78 | lock (_loadedDocuments) 79 | { 80 | _loadedDocuments.Remove(document, out _); 81 | } 82 | } 83 | } 84 | } 85 | -------------------------------------------------------------------------------- /src/DtronixPdf/PdfActionSynchronizer.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using System.Threading; 3 | 4 | namespace DtronixPdf 5 | { 6 | public class PdfActionSynchronizer 7 | { 8 | private readonly SemaphoreSlim _semaphore = new SemaphoreSlim(1, 1); 9 | private const int Timeout = 60_000; 10 | 11 | public void SyncExec(Action action) 12 | { 13 | bool acquired = false; 14 | try 15 | { 16 | if (!_semaphore.Wait(Timeout)) 17 | throw new TimeoutException("Timed out acquiring exclusive lock..."); 18 | acquired = true; 19 | action(); 20 | _semaphore.Release(); 21 | } 22 | catch 23 | { 24 | if(acquired) 25 | _semaphore.Release(); 26 | throw; 27 | } 28 | } 29 | 30 | public T SyncExec(Func function) 31 | { 32 | bool acquired = false; 33 | try 34 | { 35 | if (!_semaphore.Wait(Timeout)) 36 | throw new TimeoutException("Timed out acquiring exclusive lock..."); 37 | acquired = true; 38 | var result = function(); 39 | _semaphore.Release(); 40 | return result; 41 | } 42 | catch 43 | { 44 | if (acquired) 45 | _semaphore.Release(); 46 | throw; 47 | } 48 | } 49 | } 50 | } 51 | -------------------------------------------------------------------------------- /src/DtronixPdf/PdfBitmap.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using System.Runtime.Intrinsics; 3 | using PDFiumCore; 4 | 5 | namespace DtronixPdf 6 | { 7 | public class PdfBitmap : IDisposable 8 | { 9 | private readonly FpdfBitmapT _pdfBitmap; 10 | 11 | public float Scale { get; } 12 | 13 | /// 14 | /// MinX, MinY, MaxX, MaxY 15 | /// 16 | public Vector128 Viewport { get; } 17 | 18 | public IntPtr Pointer { get; } 19 | 20 | public int Stride { get; } 21 | 22 | public int Width { get; } 23 | 24 | public int Height { get; } 25 | 26 | public bool IsDisposed { get; private set; } 27 | 28 | /// 29 | /// Only call within the synchronizer since dll calls are made. 30 | /// 31 | /// 32 | /// 33 | /// MinX, MinY, MaxX, MaxY 34 | internal PdfBitmap( 35 | FpdfBitmapT pdfBitmap, 36 | float scale, 37 | Vector128 viewport) 38 | { 39 | _pdfBitmap = pdfBitmap; 40 | Stride = fpdfview.FPDFBitmapGetStride(_pdfBitmap); 41 | Width = (int)viewport.GetWidth(); 42 | Height = (int)viewport.GetHeight(); 43 | Pointer = fpdfview.FPDFBitmapGetBuffer(_pdfBitmap); 44 | Scale = scale; 45 | Viewport = viewport; 46 | } 47 | 48 | public void Dispose() 49 | { 50 | if (IsDisposed) 51 | return; 52 | 53 | IsDisposed = true; 54 | 55 | PdfiumManager.Default.Synchronizer.SyncExec(() => fpdfview.FPDFBitmapDestroy(_pdfBitmap)); 56 | } 57 | } 58 | } 59 | -------------------------------------------------------------------------------- /src/DtronixPdf/PdfDocument.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using System.IO; 3 | using System.Runtime.InteropServices; 4 | using PDFiumCore; 5 | 6 | 7 | namespace DtronixPdf 8 | { 9 | public class PdfDocument : IDisposable 10 | { 11 | internal readonly FpdfDocumentT Instance; 12 | 13 | private bool _isDisposed = false; 14 | private IntPtr? _documentPointer; 15 | 16 | //private static PdfActionSynchronizer _synchronizer = new PdfActionSynchronizer(); 17 | 18 | public int Pages { get; private set; } 19 | 20 | private PdfDocument(FpdfDocumentT instance) 21 | { 22 | Instance = instance; 23 | PdfiumManager.Default.AddDocument(this); 24 | } 25 | 26 | public static PdfDocument Load(string path, string password) 27 | { 28 | PdfiumManager.Initialize(); 29 | 30 | var document = PdfiumManager.Default.Synchronizer.SyncExec(() => fpdfview.FPDF_LoadDocument(path, password)); 31 | var pages = PdfiumManager.Default.Synchronizer.SyncExec(() => fpdfview.FPDF_GetPageCount(document)); 32 | 33 | if (document == null) 34 | return null; 35 | 36 | var pdfDocument = new PdfDocument(document) { Pages = pages, }; 37 | 38 | return pdfDocument; 39 | 40 | } 41 | 42 | public static unsafe PdfDocument Load(Stream stream, string password) 43 | { 44 | //var synchronizer = new PdfActionSynchronizer(); 45 | 46 | var length = (int)stream.Length; 47 | 48 | var ptr = NativeMemory.Alloc((nuint)length); 49 | 50 | Span ptrSpan = new Span(ptr, length); 51 | var pointer = new IntPtr(ptr); 52 | var readLength = 0; 53 | 54 | // Copy the data to the memory. 55 | while ((readLength = stream.Read(ptrSpan)) > 0) 56 | ptrSpan = ptrSpan.Slice(readLength); 57 | 58 | PdfiumManager.Initialize(); 59 | 60 | int pages = -1; 61 | var result = PdfiumManager.Default.Synchronizer.SyncExec(() => 62 | { 63 | var document = fpdfview.FPDF_LoadMemDocument(pointer, length, password); 64 | pages = fpdfview.FPDF_GetPageCount(document); 65 | return document; 66 | }); 67 | 68 | if (result == null) 69 | return null; 70 | 71 | var pdfDocument = new PdfDocument(result) 72 | { 73 | Pages = pages, 74 | _documentPointer = pointer 75 | }; 76 | 77 | return pdfDocument; 78 | } 79 | 80 | public static PdfDocument Create() 81 | { 82 | //var synchronizer = new PdfActionSynchronizer(); 83 | 84 | var result = PdfiumManager.Default.Synchronizer.SyncExec(fpdf_edit.FPDF_CreateNewDocument); 85 | 86 | if (result == null) 87 | return null; 88 | 89 | return new PdfDocument(result); 90 | } 91 | 92 | public PdfPage GetPage(int pageIndex) 93 | { 94 | return PdfPage.Create(this, pageIndex); 95 | } 96 | 97 | /// 98 | /// Imports pages from another PDF document. 99 | /// 100 | /// 101 | /// 102 | /// Pages are 1 based. Pages are separated by commas. Such as "1,3,5-7". 103 | /// If null, all pages are imported. 104 | /// Insertion index is 0 based. 105 | /// True on success, false on failure. 106 | public bool ImportPages(PdfDocument document, string pageRange, int insertIndex) 107 | { 108 | return PdfiumManager.Default.Synchronizer.SyncExec(() => 109 | fpdf_ppo.FPDF_ImportPages(Instance, document.Instance, pageRange, insertIndex) == 1); 110 | } 111 | 112 | /// 113 | /// Extracts the specified page range into a new PdfDocument. 114 | /// 115 | /// Pages are 1 based. Pages are separated by commas. Such as "1,3,5-7". 116 | /// New document with the specified pages. 117 | public PdfDocument ExtractPages(string pageRange) 118 | { 119 | var newDocument = Create(); 120 | newDocument.ImportPages(this, pageRange, 0); 121 | 122 | return newDocument; 123 | } 124 | 125 | /// 126 | /// Deletes the specified page from the document. 127 | /// 128 | /// 0 based index. 129 | /// True on success, false on failure. 130 | public void DeletePage(int pageIndex) 131 | { 132 | PdfiumManager.Default.Synchronizer.SyncExec(() => fpdf_edit.FPDFPageDelete(Instance, pageIndex)); 133 | } 134 | 135 | 136 | /// 137 | /// Saves the current document to the specified file path. 138 | /// 139 | /// Path to save the PdfDocument. 140 | /// True on success, false on failure. 141 | public bool Save(string path) 142 | { 143 | using var fs = new FileStream(path, FileMode.Create); 144 | return Save(fs); 145 | } 146 | 147 | /// 148 | /// Saves the current document to the passed stream. 149 | /// 150 | /// Destination stream to write the PdfDocument. 151 | /// True on success, false on failure. 152 | public bool Save(Stream stream) 153 | { 154 | var writer = new PdfFileWriteCopyStream(stream); 155 | /* 156 | Flags 157 | #define FPDF_INCREMENTAL 1 158 | #define FPDF_NO_INCREMENTAL 2 159 | #define FPDF_REMOVE_SECURITY 3 160 | */ 161 | 162 | var result = PdfiumManager.Default.Synchronizer.SyncExec(() => fpdf_save.FPDF_SaveAsCopy(Instance, writer, 1)); 163 | 164 | return result == 1; 165 | } 166 | 167 | public unsafe void Dispose() 168 | { 169 | if (_isDisposed) 170 | return; 171 | 172 | _isDisposed = true; 173 | 174 | PdfiumManager.Default.Synchronizer.SyncExec(() => fpdfview.FPDF_CloseDocument(Instance)); 175 | 176 | PdfiumManager.Default.RemoveDocument(this); 177 | 178 | // Free the native memory. 179 | if (_documentPointer != null) 180 | { 181 | NativeMemory.Free(_documentPointer.Value.ToPointer()); 182 | _documentPointer = null; 183 | } 184 | } 185 | } 186 | } 187 | -------------------------------------------------------------------------------- /src/DtronixPdf/PdfFileWriteCopyStream.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using System.IO; 3 | using PDFiumCore; 4 | 5 | namespace DtronixPdf 6 | { 7 | class PdfFileWriteCopyStream : FPDF_FILEWRITE_ 8 | { 9 | public Stream WriteStream { get; } 10 | 11 | public PdfFileWriteCopyStream(Stream writeStream) 12 | { 13 | WriteStream = writeStream; 14 | WriteBlock = CopyToStream; 15 | } 16 | 17 | private unsafe int CopyToStream(IntPtr pthis, IntPtr pdata, uint size) 18 | { 19 | var reader = new UnmanagedMemoryStream((byte*) pdata, size); 20 | reader.CopyTo(WriteStream); 21 | return 1; 22 | } 23 | } 24 | } -------------------------------------------------------------------------------- /src/DtronixPdf/PdfPage.Edit.cs: -------------------------------------------------------------------------------- 1 | using PDFiumCore; 2 | 3 | namespace DtronixPdf 4 | { 5 | public partial class PdfPage 6 | { 7 | 8 | /// 9 | /// Rotates the page 10 | /// 11 | /// 12 | /// 0 - No rotation. 13 | /// 1 - Rotated 90 degrees clockwise. 14 | /// 2 - Rotated 180 degrees clockwise. 15 | /// 3 - Rotated 270 degrees clockwise. 16 | /// 17 | /// 18 | public void SetRotation(int rotation) 19 | { 20 | PdfiumManager.Default.Synchronizer.SyncExec(() => fpdf_edit.FPDFPageSetRotation(PageInstance, rotation)); 21 | } 22 | 23 | /// 24 | /// Rotates the page 25 | /// 26 | /// 27 | /// 0 - No rotation. 28 | /// 1 - Rotated 90 degrees clockwise. 29 | /// 2 - Rotated 180 degrees clockwise. 30 | /// 3 - Rotated 270 degrees clockwise. 31 | /// 32 | public int GetRotation() 33 | { 34 | return PdfiumManager.Default.Synchronizer.SyncExec(() => fpdf_edit.FPDFPageGetRotation(PageInstance)); 35 | } 36 | 37 | 38 | /// 39 | /// Deletes the page. 40 | /// 41 | public void Delete() 42 | { 43 | PdfiumManager.Default.Synchronizer.SyncExec(() => fpdf_edit.FPDFPageDelete(Document.Instance, InitialIndex)); 44 | } 45 | } 46 | } 47 | -------------------------------------------------------------------------------- /src/DtronixPdf/PdfPage.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using System.Runtime.CompilerServices; 3 | using System.Runtime.InteropServices; 4 | using System.Runtime.Intrinsics; 5 | using System.Text; 6 | using System.Threading; 7 | using PDFiumCore; 8 | 9 | namespace DtronixPdf 10 | { 11 | public partial class PdfPage : IDisposable 12 | { 13 | internal readonly PdfDocument Document; 14 | private readonly FpdfPageT _pageInstance; 15 | private bool _isDisposed = false; 16 | 17 | public float Width { get; private set; } 18 | public float Height { get; private set; } 19 | 20 | public int InitialIndex { get; private set; } 21 | 22 | internal FpdfPageT PageInstance => _pageInstance; 23 | 24 | private PdfPage(PdfDocument document, FpdfPageT pageInstance) 25 | { 26 | Document = document; 27 | _pageInstance = pageInstance; 28 | } 29 | 30 | internal static PdfPage Create( 31 | PdfDocument document, 32 | int pageIndex) 33 | { 34 | var loadPageResult = PdfiumManager.Default.Synchronizer.SyncExec(() => fpdfview.FPDF_LoadPage(document.Instance, pageIndex)); 35 | if (loadPageResult == null) 36 | throw new Exception($"Failed to open page for page index {pageIndex}."); 37 | 38 | var page = new PdfPage(document, loadPageResult) 39 | { 40 | InitialIndex = pageIndex 41 | }; 42 | 43 | var getPageSizeResult = PdfiumManager.Default.Synchronizer.SyncExec(() => 44 | { 45 | var size = new FS_SIZEF_(); 46 | 47 | var result = fpdfview.FPDF_GetPageSizeByIndexF(document.Instance, pageIndex, size); 48 | 49 | return result == 0 ? null : size; 50 | }); 51 | 52 | if (getPageSizeResult == null) 53 | throw new Exception($"Could not retrieve page size for page index {pageIndex}."); 54 | page.Width = getPageSizeResult.Width; 55 | page.Height = getPageSizeResult.Height; 56 | 57 | return page; 58 | } 59 | 60 | public PdfBitmap Render(float scale, CancellationToken cancellationToken = default) 61 | { 62 | if (_isDisposed) 63 | throw new ObjectDisposedException(nameof(PdfPage)); 64 | 65 | var config = new PdfPageRenderConfig() 66 | { 67 | Scale = scale, 68 | Viewport = Vector128.Create(0, 0, Width * scale, Height * scale), 69 | CancellationToken = cancellationToken, 70 | }; 71 | 72 | return Render(config); 73 | } 74 | 75 | public PdfBitmap Render(PdfPageRenderConfig config) 76 | { 77 | if (_isDisposed) 78 | throw new ObjectDisposedException(nameof(PdfPage)); 79 | 80 | FpdfBitmapT bitmap = null; 81 | 82 | var viewportHeight = config.Viewport.GetHeight(); 83 | var viewportHeightInt = (int)viewportHeight; 84 | var viewportWidth = config.Viewport.GetWidth(); 85 | var viewportWidthInt = (int)viewportWidth; 86 | 87 | 88 | 89 | try 90 | { 91 | config.CancellationToken.ThrowIfCancellationRequested(); 92 | 93 | bitmap = PdfiumManager.Default.Synchronizer.SyncExec(() => fpdfview.FPDFBitmapCreateEx( 94 | viewportWidthInt, 95 | viewportHeightInt, 96 | (int)FPDFBitmapFormat.BGRA, 97 | IntPtr.Zero, 98 | 0)); 99 | 100 | if (bitmap == null) 101 | throw new Exception("failed to create a bitmap object"); 102 | 103 | config.CancellationToken.ThrowIfCancellationRequested(); 104 | 105 | if (config.BackgroundColor.HasValue) 106 | { 107 | PdfiumManager.Default.Synchronizer.SyncExec(() => fpdfview.FPDFBitmapFillRect( 108 | bitmap, 109 | 0, 110 | 0, 111 | viewportWidthInt, 112 | viewportHeightInt, 113 | config.BackgroundColor.Value)); 114 | 115 | config.CancellationToken.ThrowIfCancellationRequested(); 116 | } 117 | 118 | using var clipping = new FS_RECTF_ 119 | { 120 | Left = 0, 121 | Right = viewportWidth, 122 | Bottom = 0, 123 | Top = viewportHeight 124 | }; 125 | 126 | // | | a b 0 | 127 | // | matrix = | c d 0 | 128 | // | | e f 1 | 129 | using var matrix = new FS_MATRIX_ 130 | { 131 | A = config.Scale, 132 | B = 0, 133 | C = 0, 134 | D = config.Scale, 135 | E = config.OffsetX, 136 | F = config.OffsetY 137 | }; 138 | 139 | PdfiumManager.Default.Synchronizer.SyncExec(() => 140 | fpdfview.FPDF_RenderPageBitmapWithMatrix(bitmap, _pageInstance, matrix, clipping, 141 | (int)config.Flags)); 142 | 143 | config.CancellationToken.ThrowIfCancellationRequested(); 144 | 145 | return new PdfBitmap(bitmap, config.Scale, config.Viewport); 146 | } 147 | catch (OperationCanceledException) 148 | { 149 | if (bitmap != null) 150 | PdfiumManager.Default.Synchronizer.SyncExec(() => fpdfview.FPDFBitmapDestroy(bitmap)); 151 | throw; 152 | } 153 | catch (Exception ex) 154 | { 155 | if (bitmap != null) 156 | PdfiumManager.Default.Synchronizer.SyncExec(() => fpdfview.FPDFBitmapDestroy(bitmap)); 157 | 158 | throw new Exception("Error rendering page. Check inner exception.", ex); 159 | } 160 | finally 161 | { 162 | 163 | } 164 | } 165 | 166 | public string GetText(double x, double y, double width, double height) 167 | { 168 | if (_isDisposed) 169 | throw new ObjectDisposedException(nameof(PdfPage)); 170 | 171 | return PdfiumManager.Default.Synchronizer.SyncExec(() => 172 | { 173 | var textPage = fpdf_text.FPDFTextLoadPage(_pageInstance); 174 | if (textPage.__Instance.ToInt64() == IntPtr.Zero) 175 | throw new InvalidOperationException("Failed to load text page."); 176 | 177 | try 178 | { 179 | double x2 = x + width; 180 | double y2 = y + height; 181 | 182 | // First call to get the required buffer length 183 | int length = fpdf_text.FPDFTextGetBoundedText(textPage, x, y, x2, y2, ref Unsafe.NullRef(), 0); 184 | if (length <= 0) 185 | return string.Empty; 186 | 187 | var buffer = GC.AllocateArray(length, true); 188 | 189 | // Extract the text into the buffer 190 | fpdf_text.FPDFTextGetBoundedText(textPage, x, y, x2, y2, ref buffer[0], length); 191 | 192 | return Encoding.Unicode.GetString(MemoryMarshal.AsBytes(buffer.AsSpan())); 193 | } 194 | finally 195 | { 196 | fpdf_text.FPDFTextClosePage(textPage); 197 | } 198 | }); 199 | } 200 | 201 | public void Dispose() 202 | { 203 | if (_isDisposed) 204 | return; 205 | 206 | _isDisposed = true; 207 | 208 | PdfiumManager.Default.Synchronizer.SyncExec(() => fpdfview.FPDF_ClosePage(PageInstance)); 209 | } 210 | } 211 | } 212 | -------------------------------------------------------------------------------- /src/DtronixPdf/PdfPageRenderConfig.cs: -------------------------------------------------------------------------------- 1 | using System.Runtime.Intrinsics; 2 | using System.Threading; 3 | using PDFiumCore; 4 | 5 | namespace DtronixPdf 6 | { 7 | public record class PdfPageRenderConfig 8 | { 9 | public float Scale { get; init; } 10 | 11 | /// 12 | /// Viewport must be setup with MinX, MinY, MaxX, MaxY formatting. 13 | /// 14 | public Vector128 Viewport { get; init; } 15 | 16 | public uint? BackgroundColor { get; init; } 17 | 18 | public float OffsetX { get; init; } 19 | 20 | public float OffsetY { get; init; } 21 | 22 | public RenderFlags Flags { get; init; } = RenderFlags.RenderAnnotations; 23 | 24 | public CancellationToken CancellationToken { get; init; } 25 | } 26 | } 27 | -------------------------------------------------------------------------------- /src/DtronixPdf/PdfiumConfig.cs: -------------------------------------------------------------------------------- 1 | namespace DtronixPdf 2 | { 3 | public class PdfiumConfig { 4 | public bool AutoUnload { get; init; } 5 | } 6 | } -------------------------------------------------------------------------------- /src/DtronixPdf/VectorHelpers.cs: -------------------------------------------------------------------------------- 1 | using System.Runtime.CompilerServices; 2 | using System.Runtime.Intrinsics; 3 | 4 | namespace DtronixPdf; 5 | 6 | internal static class VectorHelpers 7 | { 8 | /// 9 | /// Gets the width of the vector. 10 | /// 11 | /// Order needs to be MinX, MinY, MaxX, MaxY 12 | /// 13 | [MethodImpl(MethodImplOptions.AggressiveInlining)] 14 | public static float GetWidth(this in Vector128 vector) 15 | { 16 | return vector[2] - vector[0]; 17 | } 18 | 19 | /// 20 | /// Gets the height of the vector. 21 | /// 22 | /// Order needs to be MinX, MinY, MaxX, MaxY 23 | /// 24 | [MethodImpl(MethodImplOptions.AggressiveInlining)] 25 | public static float GetHeight(this in Vector128 vector) 26 | { 27 | return vector[3] - vector[1]; 28 | } 29 | } 30 | -------------------------------------------------------------------------------- /src/DtronixPdfBenchmark/DtronixPdfBenchmark.csproj: -------------------------------------------------------------------------------- 1 |  2 | 3 | 4 | Exe 5 | net8.0 6 | 7 | 8 | 9 | 10 | PreserveNewest 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | PreserveNewest 21 | 22 | 23 | 24 | 25 | -------------------------------------------------------------------------------- /src/DtronixPdfBenchmark/Program.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using System.Diagnostics; 3 | using System.IO; 4 | using System.Runtime.Intrinsics; 5 | using System.Threading.Tasks; 6 | using DtronixPdf; 7 | using DtronixPdf.ImageSharp; 8 | using SixLabors.ImageSharp; 9 | 10 | namespace DtronixPdfBenchmark 11 | { 12 | class Program 13 | { 14 | static Stopwatch sw = new Stopwatch(); 15 | private const string TestPdf = "TestPdf.pdf"; 16 | static async Task Main(string[] args) 17 | { 18 | if (!Directory.Exists("output")) 19 | Directory.CreateDirectory("output"); 20 | 21 | RenderViewportScaling(); 22 | OpenAndCloseBenchmark(); 23 | 24 | 25 | Console.ReadLine(); 26 | } 27 | 28 | static async Task RenderViewportScaling() 29 | { 30 | Console.WriteLine($"RenderViewport Benchmark {TestPdf}"); 31 | var document = PdfDocument.Load(TestPdf, null); 32 | 33 | sw.Restart(); 34 | var iterations = 25; 35 | 36 | for (int i = 1; i < iterations; i++) 37 | { 38 | using var page = document.GetPage(0); 39 | 40 | float scale = i * 0.25f; 41 | Point center = new Point(0, 0); 42 | Size size = new Size(1920, 1080); 43 | 44 | var viewport = Vector128.Create( 45 | 0f, 46 | 0f, 47 | 1920f, 48 | 1080f); 49 | 50 | using var result = page.Render(new PdfPageRenderConfig() 51 | { 52 | Viewport = viewport, 53 | Scale = scale, 54 | BackgroundColor = uint.MaxValue 55 | }); 56 | result.GetImage().SaveAsPng($"output/{TestPdf}-{i}.png"); 57 | Console.WriteLine($"{sw.ElapsedMilliseconds:##,###} Milliseconds"); 58 | sw.Restart(); 59 | } 60 | 61 | sw.Stop(); 62 | document.Dispose(); 63 | 64 | Console.WriteLine($"Rendering {TestPdf} Complete"); 65 | } 66 | 67 | static async Task OpenAndCloseBenchmark() 68 | { 69 | Console.WriteLine($"Open and Close {TestPdf}"); 70 | sw.Restart(); 71 | var iterations = 100; 72 | 73 | for (int i = 1; i < iterations; i++) 74 | { 75 | using var document = PdfDocument.Load(TestPdf, null); 76 | using var page = document.GetPage(0); 77 | 78 | Console.WriteLine($"{sw.ElapsedMilliseconds:##,###} Milliseconds"); 79 | sw.Restart(); 80 | } 81 | 82 | sw.Stop(); 83 | 84 | Console.WriteLine($"Open and Close {TestPdf} Complete"); 85 | } 86 | 87 | static async Task ImportTests() 88 | { 89 | var drawing = PdfDocument.Load("drawing.pdf", null); 90 | var testDocument = PdfDocument.Load("testdoc1.pdf", null); 91 | 92 | var newDocument = PdfDocument.Create(); 93 | 94 | newDocument.ImportPages(drawing, "1", 0); 95 | newDocument.ImportPages(testDocument, null, 1); 96 | newDocument.ImportPages(drawing, "1", 2); 97 | 98 | var page = newDocument.GetPage(1); 99 | 100 | newDocument.Save("output/importtests.pdf"); 101 | 102 | } 103 | } 104 | } 105 | --------------------------------------------------------------------------------