ITextRenderer、
ITextFontResolver这两个类依赖的jar包到底是哪个，还有怎么下载？苦苦纠结了3个小时。

终于找到你了！
记录个网址：
http://www.java2s.com/Code/Jar/c/Downloadcorerendererr8pre2jar.htm
上测试代码：

 /* * html转图片 */public static boolean convertHtmlToPdf(String inputFile, ????????String outputFile, String imagePath) ???????throws Exception { ???OutputStream os = new FileOutputStream(outputFile); ???ITextRenderer renderer = new ITextRenderer(); ???String url = new File(inputFile).toURI().toURL().toString(); ???renderer.setDocument(url); ???// 解决中文支持问题 ???ITextFontResolver fontResolver = renderer.getFontResolver(); ???fontResolver.addFont("C:/Windows/Fonts/simsunb.ttf", BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED); ???//解决图片的相对路径问题 ???renderer.getSharedContext().setBaseURL("file:/" + imagePath);//D:/test ???renderer.layout(); ???renderer.createPDF(os); ???os.flush(); ???os.close(); ???return true;}

调用+走你！

这里笔者结合上一篇poi将word转html，结合使用。
/**doc

• 转html
  */
  String tagPath = "D:\red_ant_file\20180915\image\";
  String sourcePath = "D:\red_ant_file\20180915\RedAnt的实验作业.doc";
  String outPath = "D:\red_ant_file\20180915\123.html";
  try {
  AllServiceIsHere.docToHtml(tagPath, sourcePath, outPath);
  } catch (Exception e) {
  // TODO Auto-generated catch block
  e.printStackTrace();
  }

  String pdfPath = "D:\\red_ant_file\\20180915\\456.pdf";try { ???AllServiceIsHere.convertHtmlToPdf(outPath , pdfPath, tagPath);} catch (Exception e) { ???// TODO Auto-generated catch block ???e.printStackTrace();}

  【注意】
  （值得注意的地方是IText 根据html生成pdf文件的时候，会验证html文件是否标准，例如通过poi转换的出来的html文件的一些标签会缺少标签闭合 ” / “ :
  否则，你会遇到
  Can‘t load the XML resource (using TRaX transformer). org.xml.sax.SAXParseException; lineNumber: 23; columnNumber: 3; 元素类型 "meta" 必须由匹配的结束标记 "</meta>" 终止。

笔者尝试，使用第三方 jar 包Jsoup， ?直接调用 parse方法，笔者认为html就标准啦！
这个坑，让笔者苦恼了，1个小时。

为此，笔者不得不重写，word转html代码：
再次记录个网址：下载第三方 jar 包Jsoup使用
https://jsoup.org/download
上重写word转html代码：

 ???????// word 转 html ???????????public static void convert2Html(String fileName, String outPutFile) throws Exception { ???????????????HWPFDocument wordDocument = new HWPFDocument(new FileInputStream(fileName));// WordToHtmlUtils.loadDoc(new ???????????????// 兼容2007 以上版本 ???????????????WordToHtmlConverter wordToHtmlConverter = new WordToHtmlConverter( ???????????????????????DocumentBuilderFactory.newInstance().newDocumentBuilder().newDocument()); ???????????????wordToHtmlConverter.setPicturesManager(new PicturesManager() { ???????????????????public String savePicture(byte[] content, PictureType pictureType, String suggestedName, float widthInches, ???????????????????????????float heightInches) { ???????????????????????return "test/" + suggestedName; ???????????????????} ???????????????}); ???????????????wordToHtmlConverter.processDocument(wordDocument); ???????????????// save pictures ???????????????List pics = wordDocument.getPicturesTable().getAllPictures(); ???????????????if (pics != null) { ???????????????????for (int i = 0; i < pics.size(); i++) { ???????????????????????Picture pic = (Picture) pics.get(i); ???????????????????????System.out.println(); ???????????????????????try { ???????????????????????????pic.writeImageContent(new FileOutputStream("D:/test/" + pic.suggestFullFileName())); ???????????????????????} catch (FileNotFoundException e) { ???????????????????????????e.printStackTrace(); ???????????????????????} ???????????????????} ???????????????} ???????????????Document htmlDocument = wordToHtmlConverter.getDocument(); ???????????????ByteArrayOutputStream out = new ByteArrayOutputStream(); ???????????????DOMSource domSource = new DOMSource(htmlDocument); ???????????????StreamResult streamResult = new StreamResult(out); ???????????????TransformerFactory tf = TransformerFactory.newInstance(); ???????????????Transformer serializer = tf.newTransformer(); ???????????????serializer.setOutputProperty(OutputKeys.ENCODING, "UTF-8"); ???????????????serializer.setOutputProperty(OutputKeys.INDENT, "yes"); ???????????????serializer.setOutputProperty(OutputKeys.METHOD, "HTML"); ???????????????serializer.transform(domSource, streamResult); ???????????????out.close(); ???????????????writeFile(new String(out.toByteArray()), outPutFile); ???????????} ???????????????//输出html文件 ????????????????public static void writeFile(String content, String path) { ???????????????????????FileOutputStream fos = null; ????????????????????????BufferedWriter bw = null; ???????????????????????org.jsoup.nodes.Document doc = Jsoup.parse(content); ????????????????????????content=doc.html(); ???????????????????????try { ???????????????????????????????File file = new File(path); ???????????????????????????????fos = new FileOutputStream(file); ???????????????????????????????bw = new BufferedWriter(new OutputStreamWriter(fos,"UTF-8")); ???????????????????????????????bw.write(content); ???????????????????????} catch (FileNotFoundException fnfe) { ???????????????????????????????fnfe.printStackTrace(); ???????????????????????} catch (IOException ioe) { ???????????????????????????????ioe.printStackTrace(); ???????????????????????} finally { ???????????????????????????????try { ???????????????????????????????????????if (bw != null) ???????????????????????????????????????????????bw.close(); ???????????????????????????????????????if (fos != null) ???????????????????????????????????????????????fos.close(); ???????????????????????????????} catch (IOException ie) { ???????????????????????????????} ???????????????????????} ???????????????}

准备个文件，测试一下。

 ???String source = "D:\\red_ant_file\\20180915\\1303\\RedAnt的实验作业.doc"; ???????????????String out = "D:\\red_ant_file\\20180915\\1303\\789.html"; ???????????????try { ???????????????????AllServiceIsHere.convert2Html(source, out); ???????????????} catch (Exception e) { ???????????????????// TODO Auto-generated catch block ???????????????????e.printStackTrace(); ???????????????}

word转html，规范化代码后的转换结果。

接下来，html转pdf

【后话】

虽然笔者，最终调试出来了。使用这种方法转pdf。
但是使用中，会遇到各种各样的奇葩坑！因此笔者在这里不推荐使用这种方法。
原因就是，html的规则也在变化之中，写法也在变化之中。html转pdf会在后续报各种各样的标签错误。
笔者之所以粘出，这些代码。完全是因为，笔者对自己的尝试，有个明确的结果。亦或是，再优化这些代码，找到合适的解决办法。

实现word转pdf，HTML转pdf（探索篇）

原文地址：http://blog.51cto.com/13479739/2175543