word,ppt等office文档转化为pdf进行展示（POI + iText）（亲测有效）
word,ppt等office软件转化为pdf进行展示（POI +iText）（亲测有效）
- 1. ppt转化为pdf，利用java的POI和itext进行转化
- 2.wordtopdf
- 3.处理pptx的中文乱码的问题
废话不多说，上代码
1. ppt转化为pdf，利用java的POI和itext进行转化
/*** 返回pdf文件*/public File convertPPTToPDF(File file, File toFile) {try {Document pdfDocument = new Document();PdfWriter pdfWriter = PdfWriter.getInstance(pdfDocument, new FileOutputStream(toFile));FileInputStream is = new FileInputStream(file);double zoom = 2;XMLSlideShow ppt = convertPPTToPDFByPPTX(is);if (ppt == null) {throw new NullPointerException("This PPTX get data is error....");}Dimension pgsize = ppt.getPageSize();XSLFSlide slide[] = ppt.getSlides();AffineTransform at = new AffineTransform();at.setToScale(zoom, zoom);pdfDocument.setPageSize(new com.itextpdf.text.Rectangle((float) pgsize.getWidth(), (float) pgsize.getHeight()));pdfWriter.open();pdfDocument.open();PdfPTable table = new PdfPTable(1);for (int i = 0; i < slide.length; i++) {for (XSLFShape shape : slide[i].getShapes()) {if (shape instanceof XSLFTextShape) {XSLFTextShape txtshape = (XSLFTextShape) shape;for (XSLFTextParagraph textPara : txtshape.getTextParagraphs()) {List<XSLFTextRun> textRunList = textPara.getTextRuns();for (XSLFTextRun textRun : textRunList) {textRun.setFontFamily("宋体");}}}}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));slide[i].draw(graphics);graphics.getPaint();com.itextpdf.text.Image slideImage = Image.getInstance(img, null);table.addCell(new PdfPCell(slideImage, true));}pdfDocument.add(table);pdfDocument.close();pdfWriter.close();log.info(file.getAbsolutePath() + "Powerpoint file converted to PDF successfully");return toFile;} catch (Exception e) {log.info(file.getAbsolutePath() + "--->" + e.getMessage());return null;}}private XMLSlideShow convertPPTToPDFByPPTX(FileInputStream is) {try {return new XMLSlideShow(is);} catch (IOException e) {return null;}}
2.wordtopdf
/*** word to pdf */
public File convertWordToPDF(File file, File toFile) {try {// size of pdfDocumentDocument pdfDocument = new Document(PageSize.A3, 72, 72, 72, 72);PdfWriter pdfWriter = PdfWriter.getInstance(pdfDocument, new FileOutputStream(toFile));FileInputStream input_document = new FileInputStream(file);XWPFDocument doc = new XWPFDocument(input_document);//72 units=1 inchpdfWriter.setInitialLeading(20);//get all paragraphs from word docxList<XWPFParagraph> plist = doc.getParagraphs();//open pdf document for writingpdfWriter.open();pdfDocument.open();for (int i = 0; i < plist.size(); i++) {//read through the list of paragraphsXWPFParagraph pa = plist.get(i);//get all run objects from each paragraphList<XWPFRun> runs = pa.getRuns();//read through the run objectsfor (int j = 0; j < runs.size(); j++) {XWPFRun run = runs.get(j);//get pictures from the run and add them to the pdf documentList<XWPFPicture> piclist = run.getEmbeddedPictures();//traverse through the list and write each image to a fileIterator<XWPFPicture> iterator = piclist.iterator();while (iterator.hasNext()) {XWPFPicture pic = iterator.next();XWPFPictureData picdata = pic.getPictureData();byte[] bytepic = picdata.getData();Image imag = Image.getInstance(bytepic);pdfDocument.add(imag);}// 中文字体的解决 Font_Songti为字体的配置文件BaseFont bf = BaseFont.createFont(fileProperties.getPropertiesByKey("Font_Songti"), BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);Font font = new Font(bf, 15.0f, Font.NORMAL, BaseColor.BLACK);//construct unicode stringString text = run.getText(-1);byte[] bs;if (text != null) {bs = text.getBytes();String str = new String(bs);//add string to the pdf documentChunk chObj1 = new Chunk(str, font);pdfDocument.add(chObj1);}}//output new linepdfDocument.add(new Chunk(Chunk.NEWLINE));}//close pdf documentpdfDocument.close();pdfWriter.close();log.info(file.getAbsolutePath() + "Powerpoint file converted to PDF successfully");return toFile;} catch (Exception e) {log.info(file.getAbsolutePath() + "--->" + e.getMessage());return null;}}3.处理pptx的中文乱码的问题
for (int i = 0; i < slide.length; i++) {for (XSLFShape shape : slide[i].getShapes()) {if (shape instanceof XSLFTextShape) {XSLFTextShape txtshape = (XSLFTextShape) shape;for (XSLFTextParagraph textPara : txtshape.getTextParagraphs()) {List<XSLFTextRun> textRunList = textPara.getTextRuns();for (XSLFTextRun textRun : textRunList) {textRun.setFontFamily("宋体");}}}}
word,ppt等office文档转化为pdf进行展示（POI + iText）（亲测有效）
word,ppt等office软件转化为pdf进行展示（POI +iText）（亲测有效）
- 1. ppt转化为pdf，利用java的POI和itext进行转化
- 2.wordtopdf
- 3.处理pptx的中文乱码的问题
废话不多说，上代码
1. ppt转化为pdf，利用java的POI和itext进行转化
/*** 返回pdf文件*/public File convertPPTToPDF(File file, File toFile) {try {Document pdfDocument = new Document();PdfWriter pdfWriter = PdfWriter.getInstance(pdfDocument, new FileOutputStream(toFile));FileInputStream is = new FileInputStream(file);double zoom = 2;XMLSlideShow ppt = convertPPTToPDFByPPTX(is);if (ppt == null) {throw new NullPointerException("This PPTX get data is error....");}Dimension pgsize = ppt.getPageSize();XSLFSlide slide[] = ppt.getSlides();AffineTransform at = new AffineTransform();at.setToScale(zoom, zoom);pdfDocument.setPageSize(new com.itextpdf.text.Rectangle((float) pgsize.getWidth(), (float) pgsize.getHeight()));pdfWriter.open();pdfDocument.open();PdfPTable table = new PdfPTable(1);for (int i = 0; i < slide.length; i++) {for (XSLFShape shape : slide[i].getShapes()) {if (shape instanceof XSLFTextShape) {XSLFTextShape txtshape = (XSLFTextShape) shape;for (XSLFTextParagraph textPara : txtshape.getTextParagraphs()) {List<XSLFTextRun> textRunList = textPara.getTextRuns();for (XSLFTextRun textRun : textRunList) {textRun.setFontFamily("宋体");}}}}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));slide[i].draw(graphics);graphics.getPaint();com.itextpdf.text.Image slideImage = Image.getInstance(img, null);table.addCell(new PdfPCell(slideImage, true));}pdfDocument.add(table);pdfDocument.close();pdfWriter.close();log.info(file.getAbsolutePath() + "Powerpoint file converted to PDF successfully");return toFile;} catch (Exception e) {log.info(file.getAbsolutePath() + "--->" + e.getMessage());return null;}}private XMLSlideShow convertPPTToPDFByPPTX(FileInputStream is) {try {return new XMLSlideShow(is);} catch (IOException e) {return null;}}
2.wordtopdf
/*** word to pdf */
public File convertWordToPDF(File file, File toFile) {try {// size of pdfDocumentDocument pdfDocument = new Document(PageSize.A3, 72, 72, 72, 72);PdfWriter pdfWriter = PdfWriter.getInstance(pdfDocument, new FileOutputStream(toFile));FileInputStream input_document = new FileInputStream(file);XWPFDocument doc = new XWPFDocument(input_document);//72 units=1 inchpdfWriter.setInitialLeading(20);//get all paragraphs from word docxList<XWPFParagraph> plist = doc.getParagraphs();//open pdf document for writingpdfWriter.open();pdfDocument.open();for (int i = 0; i < plist.size(); i++) {//read through the list of paragraphsXWPFParagraph pa = plist.get(i);//get all run objects from each paragraphList<XWPFRun> runs = pa.getRuns();//read through the run objectsfor (int j = 0; j < runs.size(); j++) {XWPFRun run = runs.get(j);//get pictures from the run and add them to the pdf documentList<XWPFPicture> piclist = run.getEmbeddedPictures();//traverse through the list and write each image to a fileIterator<XWPFPicture> iterator = piclist.iterator();while (iterator.hasNext()) {XWPFPicture pic = iterator.next();XWPFPictureData picdata = pic.getPictureData();byte[] bytepic = picdata.getData();Image imag = Image.getInstance(bytepic);pdfDocument.add(imag);}// 中文字体的解决 Font_Songti为字体的配置文件BaseFont bf = BaseFont.createFont(fileProperties.getPropertiesByKey("Font_Songti"), BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);Font font = new Font(bf, 15.0f, Font.NORMAL, BaseColor.BLACK);//construct unicode stringString text = run.getText(-1);byte[] bs;if (text != null) {bs = text.getBytes();String str = new String(bs);//add string to the pdf documentChunk chObj1 = new Chunk(str, font);pdfDocument.add(chObj1);}}//output new linepdfDocument.add(new Chunk(Chunk.NEWLINE));}//close pdf documentpdfDocument.close();pdfWriter.close();log.info(file.getAbsolutePath() + "Powerpoint file converted to PDF successfully");return toFile;} catch (Exception e) {log.info(file.getAbsolutePath() + "--->" + e.getMessage());return null;}}3.处理pptx的中文乱码的问题
for (int i = 0; i < slide.length; i++) {for (XSLFShape shape : slide[i].getShapes()) {if (shape instanceof XSLFTextShape) {XSLFTextShape txtshape = (XSLFTextShape) shape;for (XSLFTextParagraph textPara : txtshape.getTextParagraphs()) {List<XSLFTextRun> textRunList = textPara.getTextRuns();for (XSLFTextRun textRun : textRunList) {textRun.setFontFamily("宋体");}}}}