Efficient PDF to Word document solution in Go language

Title: Efficient solution for converting PDF to word document in Go language

Text:

In daily office work, we often need to convert PDF documents into Word documents for editing or further processing. In the Go language, we can use third-party libraries or directly use system commands to implement the PDF to Word function. This article will introduce two efficient solutions and provide specific code examples.

1. Use third-party libraries

There are many third-party libraries in Go language that can realize the PDF to Word function, one of the most popular libraries isgithub.com/unidoc/unidoc. This library provides rich functionality to meet the needs of most users.

The following is a code example using the unidoc library to convert a PDF document into a Word document:

package main

import (
    "fmt"
    "io"

    "github.com/unidoc/unidoc/common"
    "github.com/unidoc/unidoc/pdf/model"
    "github.com/unidoc/unidoc/writer/docx"
)

func main() {
    // 打开PDF文档
    pdfFile, err := common.NewPdfReaderFromFile("input.pdf")
    if err != nil {
        fmt.Println(err)
        return
    }

    // 创建Word文档
    docxFile := docx.NewDocument()

    // 遍历PDF文档中的页面
    for i := 0; i < pdfFile.NumPages(); i++ {
        // 获取当前页面
        page := pdfFile.GetPage(i + 1)

        // 创建Word文档中的新页面
        section := docxFile.AddSection()

        // 将PDF页面中的内容添加到Word文档中
        err = addPdfPageToWordDocument(section, page)
        if err != nil {
            fmt.Println(err)
            return
        }
    }

    // 保存Word文档
    err = docxFile.SaveToFile("output.docx")
    if err != nil {
        fmt.Println(err)
        return
    }

    fmt.Println("PDF文档已成功转换成Word文档。")
}

// 将PDF页面中的内容添加到Word文档中
func addPdfPageToWordDocument(section *docx.Section, page *model.PdfPage) error {
    // 获取PDF页面中的内容
    content, err := page.GetContent()
    if err != nil {
        return err
    }

    // 创建Word文档中的新段落
    paragraph := section.AddParagraph()

    // 将PDF页面中的内容添加到Word文档中
    for _, element := range content {
        switch element.(type) {
        case *model.PdfText:
            // 将文本添加到Word文档中
            text := element.(*model.PdfText)
            paragraph.AddText(text.Text)
        case *model.PdfImage:
            // 将图像添加到Word文档中
            image := element.(*model.PdfImage)
            err = paragraph.AddImageFromBytes(image.ImageBytes)
            if err != nil {
                return err
            }
        }
    }

    return nil
}

2. Use system commands

If you don’t want to use a third-party library, you can also directly use system commands to implement the PDF to Word function. The following is a code example of using the libreoffice command to convert a PDF document into a Word document in a Windows system:

package main

import (
    "fmt"
    "os/exec"
)

func main() {
    // 执行libreoffice命令将PDF文档转换成Word文档
    cmd := exec.Command("libreoffice", "--convert-to", "docx", "input.pdf")
    err := cmd.Run()
    if err != nil {
        fmt.Println(err)
        return
    }

    fmt.Println("PDF文档已成功转换成Word文档。")
}

Summary

The above introduces the two An efficient solution for converting PDF documents into Word documents in Go language. The first solution uses the third-party library unidoc, which is more flexible and can meet more needs. The second solution uses system commands, which is simpler but has limited functionality. Users can choose the appropriate method according to their needs.

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