通过java实现word转PDF

用于java项目中解决word转pdf的需求，转换的效果跟调用的工具类、字体库、源文件（是wps还是microsoft保存的，格式版本等）、系统环境等多个因素相关，没有百分百完成的方法，只有不断尝试，选择适合的方法。以下介绍三个能实现该功能的方法。

说明：毕竟是需要付费买Licnse才能去水印的，还是比较好用的，我这边使用的版本是20.12。感兴趣的同学可以去aspose-words-20.12-jdk17.jar中查看License.class的源码了解验证逻辑。网上也有文章介绍这个逻辑，但大多数都是21年之前的说明了，22年后相同版本的License验证有变动。老版本（18.6版本，当前写文章的时间2022-6-26）的Licene的认证逻辑跟网上的差别不大，但是方法名称是有变动的，不要一味照搬其他文章内容，还是需要多看多思考。

项目实践过程中遇到问题：低于19.11的版本（本人测试过18.6版本的）在保存pdf后，会出现行高自动增加的问题。
用于实现的jar包20.12和18.6的地址：https://download.csdn.net/download/ka3p06/85789859

	
		
			AsposeJavaAPI
			Aspose Java API
			https://repository.aspose.com/repo/
		
	
      
	
      
			com.aspose
			aspose-words
			20.12
			jdk17
		
	

    public static void asposeWordToPdf(String sourcePath, String targetPath) {
        LoadOptions opts = new LoadOptions();
//        opts.setMswVersion(MsWordVersion.WORD_2016);
        opts.getLanguagePreferences().setDefaultEditingLanguage(EditingLanguage.CHINESE_PRC);
        Document doc = null;
        try {
            doc = new Document(sourcePath, opts);
            ParagraphFormat pf = doc.getStyles().getDefaultParagraphFormat();
            pf.clearFormatting();

            PdfSaveOptions options = new PdfSaveOptions();
            // 文字和图像压缩
            options.setExportDocumentStructure(true);
            options.setTextCompression(PdfTextCompression.FLATE);
            options.setImageCompression(PdfImageCompression.AUTO);
 			// 接收修订
            doc.acceptAllRevisions();
            // 去掉批注
            NodeCollection nc = doc.getChildNodes(NodeType.COMMENT,true);
            if (nc != null && nc.getCount() > 0) {
                for(int i=0;i
                    log.info("清除批注：{}",nc.get(i).getText());
                    Node comment =nc.get(i);
                    comment.getParentNode().removeChild(comment);
                }
            }
            // 将Word另存为PDF
            doc.save(targetPath, options);
        } catch (Exception e) {
            log.error("[aspose] word转pdf失败:{}", e.toString());
        }

    }

通过docx4j实现

		
			org.docx4j
			docx4j-JAXB-Internal
			8.2.4
		
		
			org.docx4j
			docx4j-export-fo
			8.2.4
		

 
    public static void docx4jWordToPdf(String sourcePath, String targetPath) {
        try {
            WordprocessingMLPackage pkg = Docx4J.load(new File(sourcePath));
            Mapper fontMapper = new IdentityPlusMapper();
            fontMapper.put("隶书", PhysicalFonts.get("LiSu"));
            fontMapper.put("宋体", PhysicalFonts.get("SimSun"));
            fontMapper.put("微软雅黑", PhysicalFonts.get("Microsoft Yahei"));
            fontMapper.put("黑体", PhysicalFonts.get("SimHei"));
            fontMapper.put("楷体", PhysicalFonts.get("KaiTi"));
            fontMapper.put("新宋体", PhysicalFonts.get("NSimSun"));
            fontMapper.put("华文行楷", PhysicalFonts.get("STXingkai"));
            fontMapper.put("华文仿宋", PhysicalFonts.get("STFangsong"));
            fontMapper.put("仿宋", PhysicalFonts.get("FangSong"));
            fontMapper.put("幼圆", PhysicalFonts.get("YouYuan"));
            fontMapper.put("华文宋体", PhysicalFonts.get("STSong"));
            fontMapper.put("华文中宋", PhysicalFonts.get("STZhongsong"));
            fontMapper.put("等线", PhysicalFonts.get("SimSun"));
            fontMapper.put("等线 Light", PhysicalFonts.get("SimSun"));
            fontMapper.put("华文琥珀", PhysicalFonts.get("STHupo"));
            fontMapper.put("华文隶书", PhysicalFonts.get("STLiti"));
            fontMapper.put("华文新魏", PhysicalFonts.get("STXinwei"));
            fontMapper.put("华文彩云", PhysicalFonts.get("STCaiyun"));
            fontMapper.put("方正姚体", PhysicalFonts.get("FZYaoti"));
            fontMapper.put("方正舒体", PhysicalFonts.get("FZShuTi"));
            fontMapper.put("华文细黑", PhysicalFonts.get("STXihei"));
            fontMapper.put("宋体扩展", PhysicalFonts.get("simsun-extB"));
            fontMapper.put("仿宋_GB2312", PhysicalFonts.get("FangSong_GB2312"));
            fontMapper.put("新細明體", PhysicalFonts.get("SimSun"));
            pkg.setFontMapper(fontMapper);

            Docx4J.toPDF(pkg, new FileOutputStream(targetPath));
        } catch (Exception e) {
            log.error("[docx4j] word转pdf失败:{}", e.toString());
        }
    }

通过documents4j实现

		
			com.documents4j
			documents4j-local
			1.0.3
		
		
			com.documents4j
			documents4j-transformer-msoffice-word
			1.0.3
		

 
    public static void documents4jWordToPdf(String sourcePath, String targetPath) {
        File inputWord = new File(sourcePath);
        File outputFile = new File(targetPath);
        try  {
            InputStream docxInputStream = new FileInputStream(inputWord);
            OutputStream outputStream = new FileOutputStream(outputFile);
            IConverter converter = LocalConverter.builder().build();
            converter.convert(docxInputStream)
                    .as(DocumentType.DOCX)
                    .to(outputStream)
                    .as(DocumentType.PDF).execute();
            outputStream.close();
        } catch (Exception e) {
            log.error("[documents4J] word转pdf失败:{}", e.toString());
        }
    }