Java通过第三方工具实现Word、PPT转 PDF （easy）

前言:通过第三方工具实现将word或者ppt转为pdf格式；

1、documents4j 实现word转pdf 附：（在线预览）

        <!-- documents4j word转pdf --><dependency><groupId>com.documents4j</groupId><artifactId>documents4j-local</artifactId><version>1.1.5</version></dependency><dependency><groupId>com.documents4j</groupId><artifactId>documents4j-transformer-msoffice-word</artifactId><version>1.1.5</version></dependency>

public class WORDtoODF {public static boolean docxToPdf(String wordFilePath, String pdfFilePath) {boolean result = false;File inputFile = new File(wordFilePath);File outputFile = new File(pdfFilePath);try {InputStream inputStream = new FileInputStream(inputFile);OutputStream outputStream = new FileOutputStream(outputFile);IConverter converter = LocalConverter.builder().build();converter.convert(inputStream).as(DocumentType.DOCX).to(outputStream).as(DocumentType.PDF).execute();outputStream.close();result = true;} catch (Exception e) {e.printStackTrace();}return result;}@RequestMapping("/word2pdf")public void word2pdf(HttpServletResponse response) {String wordPath = "D:\\home\\word\\aaa.docx";String pdfPath = "D:\\home\\word\\需求分析报告.pdf";docxToPdf(wordPath,pdfPath);System.out.println("转换成功");File file = new File(pdfPath);ResponseUtil.onlineReader(file,response);System.out.println("执行完毕");}
}

1.1、在线预览工具

/*** 在线预览，附件下载 工具包*/
public class ResponseUtil {public static void responseBrowser(File file, HttpServletResponse response) {//下面的是进行响应客户端的测试代码try {FileInputStream fileInputStream = new FileInputStream(file);//设置Http响应头告诉浏览器下载这个附件,下载的文件名也是在这里设置的System.out.println("file.getName()   >>>" + file.getName());response.setHeader("Content-Disposition", "attachment;fileName=" + URLEncoder.encode(file.getName(), "UTF-8"));// response.setHeader("Content-Disposition", "inline;fileName=" + URLEncoder.encode(file.getName(), "UTF-8"));System.out.println("file.getPath() >>>>>>" + file.getPath());OutputStream outputStream = null;outputStream = response.getOutputStream();byte[] bytes = new byte[2048];int len = 0;while ((len = fileInputStream.read(bytes)) > 0) {outputStream.write(bytes, 0, len);}fileInputStream.close();outputStream.close();} catch (IOException e) {e.printStackTrace();System.out.println("文件响应出错，读写出错");}}public static void onlineReader(File file, HttpServletResponse response) {if (file.exists()) {byte[] data = null;try {response.setHeader("Content-Disposition", "inline;fileName=" + URLEncoder.encode(file.getName(), "UTF-8"));FileInputStream input = new FileInputStream(file);data = new byte[input.available()];input.read(data);response.getOutputStream().write(data);input.close();} catch (Exception e) {System.out.println(e);}} else {System.out.println("文件不存在");}}
}

2、Apach POI实现ppt转pdf

 <dependency><groupId>com.itextpdf</groupId><artifactId>itextpdf</artifactId><version>5.0.6</version></dependency><!-- https://mvnrepository.com/artifact/org.apache.poi/poi --><dependency><groupId>org.apache.poi</groupId><artifactId>poi</artifactId><version>4.1.2</version></dependency><!-- https://mvnrepository.com/artifact/org.apache.poi/poi-ooxml --><dependency><groupId>org.apache.poi</groupId><artifactId>poi-ooxml</artifactId><version>4.1.2</version></dependency><!-- https://mvnrepository.com/artifact/org.apache.poi/poi-scratchpad --><dependency><groupId>org.apache.poi</groupId><artifactId>poi-scratchpad</artifactId><version>4.1.2</version></dependency>

public class PPTtoPDF {private static final String path = "D:\\home\\ppt\\";public static void main(String[] args) throws Exception {System.out.println(new Date().toString());String wordPath = "D:\\home\\ppt\\eee.pptx";String pdfPath = "D:\\home\\ppt\\eee.pdf";File inputFile = new File(wordPath);File outputFile = new File(pdfPath);if (!outputFile.exists())outputFile.createNewFile();convertPPTToPDF(inputFile,outputFile);System.out.println(new Date().toString());System.out.println("转换成功");}public static boolean convertPPTToPDF(File file, File toFile) {try {Document pdfDocument = new Document();PdfWriter pdfWriter = PdfWriter.getInstance(pdfDocument, new FileOutputStream(toFile));FileInputStream is = new FileInputStream(file);HSLFSlideShow hslfSlideShow = convertPPTToPDFByPPT(is);double zoom = 2;if (hslfSlideShow == null) {is = new FileInputStream(file);XMLSlideShow ppt = convertPPTToPDFByPPTX(is);if (ppt == null) {throw new NullPointerException("This PPTX get data is error....");}Dimension pgsize = ppt.getPageSize();List<XSLFSlide> slide = ppt.getSlides();AffineTransform at = new AffineTransform();at.setToScale(zoom, zoom);pdfDocument.setPageSize(new Rectangle((float) pgsize.getWidth(), (float) pgsize.getHeight()));pdfWriter.open();pdfDocument.open();PdfPTable table = new PdfPTable(1);for (XSLFSlide xslfSlide : slide) {BufferedImage img = new BufferedImage((int) Math.ceil(pgsize.width * zoom), (int) Math.ceil(pgsize.height * zoom), BufferedImage.TYPE_INT_RGB);Graphics2D graphics = img.createGraphics();graphics.setTransform(at);graphics.setPaint(Color.white);graphics.fill(new Rectangle2D.Float(0, 0, pgsize.width, pgsize.height));xslfSlide.draw(graphics);graphics.getPaint();Image slideImage = Image.getInstance(img, null);table.addCell(new PdfPCell(slideImage, true));}ppt.close();pdfDocument.add(table);pdfDocument.close();pdfWriter.close();System.out.println(file.getAbsolutePath() + "Powerpoint file converted to PDF successfully");return true;}Dimension pgsize = hslfSlideShow.getPageSize();List<HSLFSlide> slides = hslfSlideShow.getSlides();pdfDocument.setPageSize(new Rectangle((float) pgsize.getWidth(), (float) pgsize.getHeight()));pdfWriter.open();pdfDocument.open();AffineTransform at = new AffineTransform();PdfPTable table = new PdfPTable(1);for (HSLFSlide hslfSlide : slides) {BufferedImage img = new BufferedImage((int) Math.ceil(pgsize.width * zoom), (int) Math.ceil(pgsize.height * zoom), BufferedImage.TYPE_INT_RGB);Graphics2D graphics = img.createGraphics();graphics.setTransform(at);graphics.setPaint(Color.white);graphics.fill(new Rectangle2D.Float(0, 0, pgsize.width, pgsize.height));hslfSlide.draw(graphics);graphics.getPaint();Image slideImage = Image.getInstance(img, null);table.addCell(new PdfPCell(slideImage, true));}hslfSlideShow.close();pdfDocument.add(table);pdfDocument.close();pdfWriter.close();System.out.println(file.getAbsolutePath() + "Powerpoint file converted to PDF successfully");return true;} catch (Exception e) {System.out.println(file.getAbsolutePath() + "--->" + e.getMessage());return false;}}private static XMLSlideShow convertPPTToPDFByPPTX(FileInputStream is) {try {return new XMLSlideShow(is);} catch (IOException e) {return null;}}private static HSLFSlideShow convertPPTToPDFByPPT(FileInputStream is) {try {return new HSLFSlideShow(is);} catch (Exception e) {return null;}}
}

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Java通过第三方工具实现Word、PPT转 PDF （easy）

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