通过java实现word转PDF
原文链接：https://blog.csdn.net/ka3p06/article/details/125476270
介绍
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。
一、通过Aspose实现
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
相关依赖
<repositories>
<repository>
<id>AsposeJavaAPI</id>
<name>Aspose Java API</name>
<url>https://repository.aspose.com/repo/</url>
</repository>
</repositories>
<span class="token generics"><span class="token punctuation"><</span>dependencies<span class="token punctuation">></span></span>
<span class="token generics"><span class="token punctuation"><</span>dependency<span class="token punctuation">></span></span>
<span class="token generics"><span class="token punctuation"><</span>groupId<span class="token punctuation">></span></span>com<span class="token punctuation">.</span>aspose<span class="token operator"><</span><span class="token operator">/</span>groupId<span class="token operator">></span>
<span class="token generics"><span class="token punctuation"><</span>artifactId<span class="token punctuation">></span></span>aspose<span class="token operator">-</span>words<span class="token operator"><</span><span class="token operator">/</span>artifactId<span class="token operator">></span>
<span class="token generics"><span class="token punctuation"><</span>version<span class="token punctuation">></span></span><span class="token number">20.12</span><span class="token operator"><</span><span class="token operator">/</span>version<span class="token operator">></span>
<span class="token generics"><span class="token punctuation"><</span>classifier<span class="token punctuation">></span></span>jdk17<span class="token operator"><</span><span class="token operator">/</span>classifier<span class="token operator">></span>
<span class="token operator"><</span><span class="token operator">/</span>dependency<span class="token operator">></span>
<span class="token operator"><</span><span class="token operator">/</span>dependencies<span class="token operator">></span>
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核心代码
/** * 通过aspose 将word转pdf * * @param sourcePath 源文件地址 如 /root/example.doc * @param targetPath 目标文件地址 如 /root/example.pdf */ 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<nc.getCount();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()); } }
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二、通过docx4j实现
通过docx4j实现
相关依赖
<dependency>
<groupId>org.docx4j</groupId>
<artifactId>docx4j-JAXB-Internal</artifactId>
<version>8.2.4</version>
</dependency>
<dependency>
<groupId>org.docx4j</groupId>
<artifactId>docx4j-export-fo</artifactId>
<version>8.2.4</version>
</dependency>
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核心代码
/** * 通过docx4j 实现word转pdf * * @param sourcePath 源文件地址 如 /root/example.doc * @param targetPath 目标文件地址 如 /root/example.pdf */ 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()); } }
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三、通过documents4j实现
通过documents4j实现
相关依赖
<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>
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核心代码
/**
* 通过documents4j 实现word转pdf
*
* @param sourcePath 源文件地址 如 /root/example.doc
* @param targetPath 目标文件地址 如 /root/example.pdf
*/
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());
}
}
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