3 | 
4 | 
24 |
25 |
26 | 1. Create a sample HTML file inside of your project.
27 |
28 | 2. Get go package using the below command for parsing the HTMl template.
29 | - ``go get github.com/SebastiaanKlippert/go-wkhtmltopdf``
30 |
31 | 3. Get another go package for converting this html parse data to pdf using the below command.
32 | - ``go get html/template``
33 |
34 | 4. Run below command
35 | - ``go run main.go``
36 |
37 | ###The previous version of golang was deprecated and not supporting the converter library so dependencies are updated with the new updates.
38 |
39 | #Steps by step:
40 |
41 | - Install ``golang (1.16)``
42 | - Check ``go version`` (Make Sure it is latest = 1.16)
43 | - ``go mod vendor``
44 | - ``go build``
45 |
46 |
47 | ##To Run the project:
48 |
49 | - ``go run main.go``
50 |
51 | ## Update project dependencies
52 |
53 | - ``go get github.com/SebastiaanKlippert/go-wkhtmltopdf`` v1.6.1
54 | - ``go get html/template``
55 |
56 |
57 | After finish above steps, You can generate pdf file from html.
58 |
59 | **NOTES:** The pdf will be generated in the storage directory. Don't forget to mention your html and pdf path details inside your code. If you want to generate pdf for static data then it is not mandatory to generate another html for clone data. Use that same sample html inside the code.
60 |
61 |
62 | ## LICENSE!
63 |
64 | Golang HTML to PDF Converter is [MIT-licensed](https://github.com/mindinventory/Golang-HTMLTOPDF-Converter/blob/master/LICENSE)
65 |
66 | ## Let us know!
67 | We’d be really happy if you sent us links to your projects where you use our component. Just send an email to sales@mindinventory.com And do let us know if you have any questions or suggestion regarding our work.
68 |
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/SECURITY.md:
--------------------------------------------------------------------------------
1 | # Security Policy
2 |
3 | ## Supported Versions
4 |
5 | Use this section to tell people about which versions of your project are
6 | currently being supported with security updates.
7 |
8 | | Version | Supported |
9 | | ------- | ------------------ |
10 | | 5.1.x | :white_check_mark: |
11 | | 5.0.x | :x: |
12 | | 4.0.x | :white_check_mark: |
13 | | < 4.0 | :x: |
14 |
15 | ## Reporting a Vulnerability
16 |
17 | Use this section to tell people how to report a vulnerability.
18 |
19 | Tell them where to go, how often they can expect to get an update on a
20 | reported vulnerability, what to expect if the vulnerability is accepted or
21 | declined, etc.
22 |
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/go.mod:
--------------------------------------------------------------------------------
1 | module Golang-HTML-TO-PDF-Converter
2 |
3 | go 1.16
4 |
5 | require github.com/SebastiaanKlippert/go-wkhtmltopdf v1.6.1
6 |
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/go.sum:
--------------------------------------------------------------------------------
1 | github.com/SebastiaanKlippert/go-wkhtmltopdf v1.6.1 h1:Arp9w1xMGfnYFQH8don5x7b9oPQWQrUcpFquvBCFvlU=
2 | github.com/SebastiaanKlippert/go-wkhtmltopdf v1.6.1/go.mod h1:zRBvVJtIfhaWvQ9lPIkXrtona4qqSmjZ1HfKvq4dQzI=
3 |
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/html-pdf-new.gif:
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https://raw.githubusercontent.com/Mindinventory/Golang-HTML-TO-PDF-Converter/dff1f03cc34bdb7548f8c3b58cf64b67e46c6bbe/html-pdf-new.gif
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/main.go:
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1 | package main
2 |
3 | import (
4 | u "Golang-HTML-TO-PDF-Converter/pdfGenerator"
5 | "fmt"
6 | )
7 |
8 | func main() {
9 |
10 | r := u.NewRequestPdf("")
11 |
12 | //html template path
13 | templatePath := "templates/sample.html"
14 |
15 | //path for download pdf
16 | outputPath := "storage/example.pdf"
17 |
18 | //html template data
19 | templateData := struct {
20 | Title string
21 | Description string
22 | Company string
23 | Contact string
24 | Country string
25 | }{
26 | Title: "HTML to PDF generator",
27 | Description: "This is the simple HTML to PDF file.",
28 | Company: "Jhon Lewis",
29 | Contact: "Maria Anders",
30 | Country: "Germany",
31 | }
32 |
33 | if err := r.ParseTemplate(templatePath, templateData); err == nil {
34 |
35 | // Generate PDF with custom arguments
36 | args := []string{"no-pdf-compression"}
37 |
38 | // Generate PDF
39 | ok, _ := r.GeneratePDF(outputPath, args)
40 | fmt.Println(ok, "pdf generated successfully")
41 | } else {
42 | fmt.Println(err)
43 | }
44 | }
45 |
--------------------------------------------------------------------------------
/pdfGenerator/pdf.go:
--------------------------------------------------------------------------------
1 | package pdfGenerator
2 |
3 | import (
4 | "bytes"
5 | "html/template"
6 | "io/ioutil"
7 | "log"
8 | "os"
9 | "strconv"
10 | "time"
11 |
12 | "github.com/SebastiaanKlippert/go-wkhtmltopdf"
13 | )
14 |
15 | // pdf requestpdf struct
16 | type RequestPdf struct {
17 | body string
18 | }
19 |
20 | // new request to pdf function
21 | func NewRequestPdf(body string) *RequestPdf {
22 | return &RequestPdf{
23 | body: body,
24 | }
25 | }
26 |
27 | // parsing template function
28 | func (r *RequestPdf) ParseTemplate(templateFileName string, data interface{}) error {
29 |
30 | t, err := template.ParseFiles(templateFileName)
31 | if err != nil {
32 | return err
33 | }
34 | buf := new(bytes.Buffer)
35 | if err = t.Execute(buf, data); err != nil {
36 | return err
37 | }
38 | r.body = buf.String()
39 | return nil
40 | }
41 |
42 | // generate pdf function
43 | func (r *RequestPdf) GeneratePDF(pdfPath string, args []string) (bool, error) {
44 | t := time.Now().Unix()
45 | // write whole the body
46 |
47 | if _, err := os.Stat("cloneTemplate/"); os.IsNotExist(err) {
48 | errDir := os.Mkdir("cloneTemplate/", 0777)
49 | if errDir != nil {
50 | log.Fatal(errDir)
51 | }
52 | }
53 | err1 := ioutil.WriteFile("cloneTemplate/"+strconv.FormatInt(int64(t), 10)+".html", []byte(r.body), 0644)
54 | if err1 != nil {
55 | panic(err1)
56 | }
57 |
58 | f, err := os.Open("cloneTemplate/" + strconv.FormatInt(int64(t), 10) + ".html")
59 | if f != nil {
60 | defer f.Close()
61 | }
62 | if err != nil {
63 | log.Fatal(err)
64 | }
65 |
66 | pdfg, err := wkhtmltopdf.NewPDFGenerator()
67 | if err != nil {
68 | log.Fatal(err)
69 | }
70 |
71 | // Use arguments to customize PDF generation process
72 | for _, arg := range args {
73 | switch arg {
74 | case "low-quality":
75 | pdfg.LowQuality.Set(true)
76 | case "no-pdf-compression":
77 | pdfg.NoPdfCompression.Set(true)
78 | case "grayscale":
79 | pdfg.Grayscale.Set(true)
80 | // Add other arguments as needed
81 | }
82 | }
83 |
84 | pdfg.AddPage(wkhtmltopdf.NewPageReader(f))
85 |
86 | pdfg.PageSize.Set(wkhtmltopdf.PageSizeA4)
87 |
88 | pdfg.Dpi.Set(300)
89 |
90 | err = pdfg.Create()
91 | if err != nil {
92 | log.Fatal(err)
93 | }
94 |
95 | err = pdfg.WriteFile(pdfPath)
96 | if err != nil {
97 | log.Fatal(err)
98 | }
99 |
100 | dir, err := os.Getwd()
101 | if err != nil {
102 | panic(err)
103 | }
104 |
105 | defer os.RemoveAll(dir + "/cloneTemplate")
106 |
107 | return true, nil
108 | }
109 |
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/storage/example.pdf:
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https://raw.githubusercontent.com/Mindinventory/Golang-HTML-TO-PDF-Converter/dff1f03cc34bdb7548f8c3b58cf64b67e46c6bbe/storage/example.pdf
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/templates/sample.html:
--------------------------------------------------------------------------------
1 |
2 |
3 |
4 |
5 | {{.Description}}
30 || Company | 34 |Contact | 35 |Country | 36 |
|---|---|---|
| {{.Company}} | 41 |{{.Contact}} | 42 |{{.Country}} | 43 |