前言

java实现word文档转PDF，PDF转word
解决只能转换4页问题
解决每页头部存在水印问题

实现

引入依赖

<dependency>
   <groupId>com.documents4j</groupId>
    <artifactId>documents4j-local</artifactId>
    <version>1.0.3</version>
</dependency>
<dependency>
    <groupId>com.documents4j</groupId>
    <artifactId>documents4j-transformer-msoffice-word</artifactId>
    <version>1.0.3</version>
</dependency>

破解的jar包
链接: https://pan.baidu.com/s/1MO8OBuf4FQ937R9KDtofPQ 提取码: 4tsn

java">word">package com.common.util;

word">import com.aspose.pdf.Document;
word">import com.aspose.pdf.SaveFormat;
word">import com.documents4j.api.DocumentType;
word">import com.documents4j.api.IConverter;
word">import com.documents4j.job.LocalConverter;


word">import java.io.*;

/**
 * PDF转换工具类
 * @author yyq
 */
word">public word">class PdfUtil {

    word">public word">static word">void main(String[] args) {

        //pdfToObj("C:\\Users\\Administrator\\Desktop\\测试.pdf", "docx");

        String filePath = "C:\\Users\\Administrator\\Desktop\\测试.docx";
        String outFilePath = "C:\\Users\\Administrator\\Desktop\\测试.pdf";
        objToPdf(filePath, outFilePath, "docx");
    }

    /**
     * PDF 转 doc、Excel、xml
     * @param pdfPath 需要转换的pdf路径
     * @param suffix 文件后缀
     */
    word">public word">static word">void pdfToObj(String pdfPath, String suffix) {
        word">long old = System.currentTimeMillis();
        FileOutputStream os = word">null;
        word">try {
            // 新建一个word文档
            String wordPath = pdfPath.substring(0, pdfPath.lastIndexOf(".")) + "." + suffix;
            os = word">new FileOutputStream(wordPath);
            // doc是将要被转化的word文档
            Document doc = word">new Document(pdfPath);
            // 全面支持DOC, DOCX, OOXML, RTF HTML, OpenDocument, PDF, EPUB, XPS, SWF 相互转换
            word">if(suffix.equals("doc")){
                doc.save(os, SaveFormat.Doc);
            }word">else word">if(suffix.equals("docx")){
                doc.save(os, SaveFormat.DocX);
            }word">else word">if(suffix.equals("xls") || suffix.equals("xlsx")){
                doc.save(os, SaveFormat.Excel);
            }word">else word">if(suffix.equals("html")){
                doc.save(os, SaveFormat.Html);
            }word">else word">if(suffix.equals("xml")){
                doc.save(os, SaveFormat.Xml);
            }
            os.close();
            // 转化耗时
            word">long now = System.currentTimeMillis();
            word">long useTime = ((now - old) / 1000);
            System.out.println("Pdf 转 Word 共耗时：" + useTime + "秒");
        } word">catch (Exception e) {
            System.out.println("Pdf 转 Word 失败...");
            e.printStackTrace();
        }word">finally {
            word">try {
                os.close();
            } word">catch (IOException e) {
                e.printStackTrace();
            }
        }
    }

    /**
     * txt、doc、Excel、xml 转 PDF
     * @param oidPath 需要转的文件路径
     * @param newPath 转成的PDF文件路径
     */
    word">public word">static word">void objToPdf(String oidPath, String newPath, String suffix){
        InputStream inputStream = word">null;
        OutputStream outputStream = word">null;
        IConverter converter = word">null;
        word">try {
            // 源文件地址
            File oidFile = word">new File(oidPath);
            // 导出文件地址
            File newFile = word">new File(newPath);
            // 文件读取
            inputStream = word">new FileInputStream(oidFile);
            outputStream = word">new FileOutputStream(newFile);
            // 开始转换
            converter = LocalConverter.builder().build();
            word">boolean flag = false;
            word">if(suffix.equals("doc")){
                flag = converter.convert(inputStream).as(DocumentType.DOC).word">to(outputStream).as(DocumentType.PDF).execute();
            }word">else word">if(suffix.equals("docx")){
                flag = converter.convert(inputStream).as(DocumentType.DOCX).word">to(outputStream).as(DocumentType.PDF).execute();
            }word">else word">if(suffix.equals("txt")){
                flag = converter.convert(inputStream).as(DocumentType.TEXT).word">to(outputStream).as(DocumentType.PDF).execute();
            }word">else word">if(suffix.equals("xls")){
                flag = converter.convert(inputStream).as(DocumentType.XLS).word">to(outputStream).as(DocumentType.PDF).execute();
            }word">else word">if(suffix.equals("xlsx")){
                flag = converter.convert(inputStream).as(DocumentType.XLSX).word">to(outputStream).as(DocumentType.PDF).execute();
            }word">else word">if(suffix.equals("html")){
                flag = converter.convert(inputStream).as(DocumentType.MHTML).word">to(outputStream).as(DocumentType.PDF).execute();
            }word">else word">if(suffix.equals("xml")){
                flag = converter.convert(inputStream).as(DocumentType.XML).word">to(outputStream).as(DocumentType.PDF).execute();
            }
            word">if (flag) {
                converter.shutDown();
            }
            inputStream.close();
            outputStream.close();
            System.out.println("转换成功");
        } word">catch (Exception e) {
            converter.shutDown();
            e.printStackTrace();
            System.out.println("转换失败");
        }word">finally {
            word">try {
                inputStream.close();
                outputStream.close();
            } word">catch (IOException e) {
                e.printStackTrace();
            }
        }
    }


}