由于项目中用到,所以网上找了很多,但或多或少有些问题,我整理更新了一下。
Itext架包下载地址:
http://download.csdn.net/detail/qm4050/5531349
PDF生成代码如下:
import java.io.*; import com.itextpdf.text.*; import com.itextpdf.text.pdf.*; /** * PDF生成 */ public class PDFBuild { public static void buidPDF(String pdfFile, String imageFile, String waterMarkName, int permission) { try { File file = File.createTempFile("tempFile", ".pdf"); // 创建临时文件 // 生成PDF if (createPDFFile(file)) { waterMark(file.getPath(), imageFile, pdfFile, waterMarkName, permission); // 添加水印 } } catch (Exception e) { e.printStackTrace(); } } /** * 创建PDF文件 * * @param file * 临时文件 * @return 成功/失败 */ public static boolean createPDFFile(File file) { Rectangle rect = new Rectangle(PageSize.A4); Document doc = new Document(rect, 50.0F, 50.0F, 50.0F, 50.0F); try { PdfWriter.getInstance(doc, new FileOutputStream(file)); doc.open(); BaseFont bf = BaseFont.createFont("C:/WINDOWS/Fonts/SIMSUN.TTC,1", "Identity-H", true);// 使用系统字体 Font font = new Font(bf, 14.0F, 0); font.setStyle(37); // 设置样式 font.setFamily("宋体"); // 设置字体 Paragraph p = new Paragraph("付 款 通 知 书\r\n", font); p.setAlignment(1); doc.add(p); doc.close(); return true; } catch (Exception e) { e.printStackTrace(); } return false; } public static void waterMark(String inputFile, String imageFile, String outputFile, String waterMarkName, int permission) { try { PdfReader reader = new PdfReader(inputFile); PdfStamper stamper = new PdfStamper(reader, new FileOutputStream( outputFile)); BaseFont base = BaseFont.createFont( "C:/WINDOWS/Fonts/SIMSUN.TTC,1", "Identity-H", true);// 使用系统字体 int total = reader.getNumberOfPages() + 1; Image image = Image.getInstance(imageFile); // 图片位置 image.setAbsolutePosition(400, 480); PdfContentByte under; int j = waterMarkName.length(); char c = 0; int rise = 0; for (int i = 1; i < total; i++) { rise = 400; under = stamper.getUnderContent(i); under.beginText(); under.setFontAndSize(base, 30); if (j >= 15) { under.setTextMatrix(200, 120); for (int k = 0; k < j; k++) { under.setTextRise(rise); c = waterMarkName.charAt(k); under.showText(c + ""); } } else { under.setTextMatrix(240, 100); for (int k = 0; k < j; k++) { under.setTextRise(rise); c = waterMarkName.charAt(k); under.showText(c + ""); rise -= 18; } } // 添加水印文字 under.endText(); // 添加水印图片 under.addImage(image); // 画个圈 under.ellipse(250, 450, 350, 550); under.setLineWidth(1f); under.stroke(); } stamper.close(); } catch (Exception e) { e.printStackTrace(); } } public static void main(String[] args) { String imageFilePath = "D:/itext2.png"; // 水印图片路径 String pdfFilePath = "D:/itext.pdf"; // 文件生成路径 buidPDF(pdfFilePath, imageFilePath, "正版授权", 16); } }