PDF相关操作
PDF相关操作
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word转pdf
public static void wordConvertPdf(File targetFile, File file) throws Exception { FileOutputStream os = new FileOutputStream(file); // Address是将要被转化的word文档 Document doc = new Document(targetFile.getAbsolutePath()); DocumentBuilder builder = new DocumentBuilder(doc); //文档主体内容设置段后和行距 builder.moveToDocumentStart(); builder.getParagraphFormat().setLeftIndent(12); builder.getParagraphFormat().setSpaceAfter(0); builder.moveToHeaderFooter(HeaderFooterType.HEADER_PRIMARY); builder.getParagraphFormat().setLineSpacing(12); builder.getParagraphFormat().setSpaceAfter(0); builder.moveToHeaderFooter(HeaderFooterType.FOOTER_PRIMARY); builder.getParagraphFormat().setLineSpacing(12); builder.getParagraphFormat().setSpaceAfter(0); builder.moveToDocumentStart(); doc.save(os, SaveFormat.PDF); os.close(); } -
添加图片
private String issuedAndStamped(File file) throws Exception { String fileUrl = null; String baseUrl = Constants.docXmlTemplatePath; PDDocument document = null; try { // 加载PDF文档 document = PDDocument.load(file); // 加载图片 PDImageXObject logo = PDImageXObject.createFromFile(path + "logo_fsda.jpg", document); Map<String, Integer> logoMap = getImageScale(logo, 60f); //首页插入图片 // 获取第一页 PDPage firstPage = document.getPage(0); // 在第一页的合适位置插入图片 PDPageContentStream contentStream = new PDPageContentStream(document, firstPage, PDPageContentStream.AppendMode.APPEND, true, true); contentStream.close(); Map<String, Double> signMap = new HashMap<>(); PDFTextStripper stripper = new PDFTextStripper() { @Override protected void writeString(String string, List<TextPosition> textPositions) throws IOException { //System.out.println("新的一页。。。。。。"); if (string.contains("编制：")||string.contains("编制:")) { boolean b = false; for (TextPosition text : textPositions) { String textValue = text.getUnicode(); if (Objects.equals("制", textValue)) { b = true; } if ((Objects.equals("：", textValue) || Objects.equals(":", textValue)) && b) { Rectangle2D.Float boundingBox = calculateBoundingBox(text); //System.out.println("Text: " + textValue); //System.out.println("(编制)Position: x=" + boundingBox.getX() + ", y=" + boundingBox.getY()); signMap.put("bzrx", boundingBox.getX()); signMap.put("bzry", boundingBox.getY()); break; } } } } }; stripper.setSortByPosition(true); Writer dummy = new OutputStreamWriter(new ByteArrayOutputStream()); // 遍历每一页 for (PDPage page : document.getPages()) { // 创建内容流 contentStream = new PDPageContentStream(document, page, PDPageContentStream.AppendMode.APPEND, true, true); // 在页面上绘制图片 contentStream.drawImage(logo, 500, 775, logoMap.get("scaledWidth"), logoMap.get("scaledHeight")); // 关闭内容流 contentStream.close(); } // 保存PDF文档 fileUrl = baseUrl + new Date().getTime() + ".pdf"; File f = new File(fileUrl); if (!f.getParentFile().exists()) { f.getParentFile().mkdirs(); } document.save(fileUrl); // 关闭文档 document.close(); } catch (IOException e) { e.printStackTrace(); } return fileUrl; } private static Rectangle2D.Float calculateBoundingBox(TextPosition text) { float x = text.getXDirAdj(); float y = text.getYDirAdj(); float width = text.getWidthDirAdj(); float height = text.getHeightDir(); return new Rectangle2D.Float(x, y, width, height); } private static Map<String, Integer> getImageScale(PDImageXObject image, float v) { // 获取图片原始的宽度和高度 int originalWidth = image.getWidth(); int originalHeight = image.getHeight(); // 计算缩放比例 float scaleX = v / originalWidth; float scaleY = v / originalHeight; float scale = Math.min(scaleX, scaleY); // 计算缩放后的宽度和高度 int scaledWidth = Math.round(originalWidth * scale); int scaledHeight = Math.round(originalHeight * scale); Map<String, Integer> map = new HashMap<>(); map.put("scaledWidth", scaledWidth); map.put("scaledHeight", scaledHeight); return map; } -
添加水印
private void waterMark(String inputPdfPath, String outputPdfPath) { try { String watermarkText = "FSDA"; int interval = -5; PdfReader reader = new PdfReader(inputPdfPath); System.out.println("读取PDF文件模板完了============================="); PdfStamper stamper = new PdfStamper(reader, new FileOutputStream(outputPdfPath)); BaseFont base = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H", BaseFont.NOT_EMBEDDED); com.itextpdf.text.Rectangle pageRect = null; PdfGState gs = new PdfGState(); gs.setFillOpacity(0.07f); //透明度 gs.setStrokeOpacity(0.07f); int total = reader.getNumberOfPages() + 1; JLabel label = new JLabel(); FontMetrics metrics; int textH = 0; int textW = 0; label.setText(watermarkText); metrics = label.getFontMetrics(label.getFont()); textH = metrics.getHeight(); textW = metrics.stringWidth(label.getText()); PdfContentByte under; for (int i = 1; i < total; i++) { pageRect = reader.getPageSizeWithRotation(i); under = stamper.getOverContent(i); under.saveState(); under.setGState(gs); under.beginText(); under.setFontAndSize(base, 10); under.setTextRenderingMode(PdfContentByte.TEXT_RENDER_MODE_FILL_STROKE); //你可以随心所欲的改你自己想要的角度 水印文字成30度角倾斜 for (int height = interval*2 + textH; height < pageRect.getHeight(); height = height + textH * 8) { for (int width = interval + textW; width < pageRect.getWidth() + textW; width = (int) (width + (textW * 4))) { under.showTextAligned(Element.ALIGN_LEFT, watermarkText, width - textW, height - textH, 20); } } // 添加水印文字 under.endText(); } System.out.println("PDF文件水印打印成功！路径：" + outputPdfPath); //说三遍 //一定不要忘记关闭流 //一定不要忘记关闭流 //一定不要忘记关闭流 stamper.close(); reader.close(); } catch (Exception e) { e.printStackTrace(); } }
