java生成PDF格式文件并且加密
package com.me.test;import java.awt.*;import java.io.*;import com.lowagie.text.*;import com.lowagie.text.Font;import com.lowagie.text.Image;import com.lowagie.text.Rectangle;import com.lowagie.text.pdf.*;public class PdfConvertor {// txt原始文件的路径private static final String txtFilePath = "f:/Itext/test.txt";// 生成的pdf文件路径private static final String pdfFilePath = "f:/Itext/test.pdf";// 添加水印图片路径private static final String imageFilePath = "f:/Itext/b.gif";// 生成临时文件前缀private static final String prefix = "tempFile";// 所有者密码private static final String OWNERPASSWORD = "12345678";/** * txt文件转换为pdf文件 ** @param txtFile * txt文件路径 * @param pdfFile * pdf文件路径 * @param userPassWord * 用户密码 * @param waterMarkName * 水印内容 * @param permission * 操作权限 */public static void generatePDFWithTxt(String txtFile, String pdfFile,String userPassWord, String waterMarkName, int permission) {try {// 生成临时文件File file = File.createTempFile(prefix, ".pdf");// 创建pdf文件到临时文件if (createPDFFile(txtFile, file)) {// 增加水印和加密waterMark(file.getPath(), pdfFile, userPassWord, OWNERPASSWORD,waterMarkName, permission);}} catch (Exception e) {e.printStackTrace();}}/** * 创建PDF文档 ** @param txtFilePath * txt文件路径（源文件） * @param pdfFilePath * pdf文件路径(新文件) */private static boolean createPDFFile(String txtFilePath, File file) {// 设置纸张Rectangle rect = new Rectangle(PageSize.A4);// 设置页码HeaderFooter footer = new HeaderFooter(new Phrase("页码:",setChineseFont()), true);footer.setBorder(Rectangle.NO_BORDER);// step1Document doc = new Document(rect, 50, 50, 50, 50);doc.setFooter(footer);try {FileReader fileRead = new FileReader(txtFilePath);BufferedReader read = new BufferedReader(fileRead);// 设置pdf文件生成路径 step2PdfWriter.getInstance(doc, new FileOutputStream(file));// 打开pdf文件 step3doc.open();// 实例化Paragraph 获取写入pdf文件的内容，调用支持中文的方法. step4while (read.ready()) {// 添加内容到pdf(这里将会按照txt文件的原始样式输出)doc.add(new Paragraph(read.readLine(), PdfConvertor.setChineseFont()));}// 关闭pdf文件 step5doc.close();return true;} catch (Exception e) {e.printStackTrace();return false;}}/** * 在pdf文件中添加水印 ** @param inputFile * 原始文件 * @param outputFile * 水印输出文件 * @param waterMarkName * 水印名字 */private static void waterMark(String inputFile, String outputFile,String userPassWord, String ownerPassWord, String waterMarkName,int permission) {try {PdfReader reader = new PdfReader(inputFile);PdfStamper stamper = new PdfStamper(reader, new FileOutputStream(outputFile));// 设置密码stamper.setEncryption(userPassWord.getBytes(), ownerPassWord.getBytes(), permission, false);BaseFont base = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H",BaseFont.NOT_EMBEDDED);PdfContentByte under;int total = reader.getNumberOfPages() + 1;Image image = Image.getInstance(imageFilePath);image.setAbsolutePosition(200, 400);int j = waterMarkName.length();char c = 0;int rise = 0;for (int i = 1; i < total; i++) {rise = 500;under = stamper.getUnderContent(i);// 添加图片under.addImage(image);under.beginText();under.setColorFill(Color.CYAN);under.setFontAndSize(base, 30);// 设置水印文字字体倾斜 开始if (j >= 15) {under.setTextMatrix(200, 120);for (int k = 0; k < j; k++) {under.setTextRise(rise);c = waterMarkName.charAt(k);under.showText(c + "");rise -= 20;}} else {under.setTextMatrix(180, 100);for (int k = 0; k < j; k++) {under.setTextRise(rise);c = waterMarkName.charAt(k);under.showText(c + "");rise -= 18;}}// 字体设置结束under.endText();// 画一个圆//under.ellipse(250, 450, 350, 550);//under.setLineWidth(1f);//under.stroke();}stamper.close();} catch (Exception e) {e.printStackTrace();}}/** * 设置中文 ** @return Font */private static Font setChineseFont() {BaseFont base = null;Font fontChinese = null;try {base = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H",BaseFont.EMBEDDED);fontChinese = new Font(base, 12, Font.NORMAL);} catch (DocumentException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}return fontChinese;}public static void main(String[] args) {generatePDFWithTxt(txtFilePath, pdfFilePath, OWNERPASSWORD, "allone", 16);}}package com.me.test;import java.awt.*;import java.io.*;import com.lowagie.text.*;import com.lowagie.text.Font;import com.lowagie.text.Image;import com.lowagie.text.Rectangle;import com.lowagie.text.pdf.BaseFont;import com.lowagie.text.pdf.PdfContentByte;import com.lowagie.text.pdf.PdfReader;import com.lowagie.text.pdf.PdfWriter;/** * First iText example: Hello World. */public class HelloWorld {/** Path to the resulting PDF file. */public static final String RESULT = "f:/hello.pdf";public static final String pwd = "123456";public static final String result = "f:/Itext/b.gif";/** * Creates a PDF file: hello.pdf ** @param args * no arguments needed */public static void main(String[] args) throws DocumentException,IOException {new HelloWorld().createPdf(RESULT);}/** * Creates a PDF document. ** @param filename * the path to the new PDF document * @throws DocumentException * @throws IOException */public void createPdf(String filename) throws DocumentException,IOException {// 设定文本样式Rectangle rec = new Rectangle(PageSize.A4);rec.setBackgroundColor(Color.GRAY);rec.setBorder(Rectangle.TOP);rec.setBorderColor(Color.black);rec.setBorderWidth(50);// 创建本文Document doc = new Document(rec, 100, 201, 20, 20);// 设定路径PdfWriter pdf = PdfWriter.getInstance(doc, new FileOutputStream(HelloWorld.RESULT));// 设定布局pdf.setViewerPreferences(PdfWriter.PageModeUseThumbs| PdfWriter.PageLayoutTwoColumnLeft | PdfWriter.HideMenubar);// 加密pdf.setEncryption(pwd.getBytes(), pwd.getBytes(), PdfWriter.ALLOW_COPY| PdfWriter.ALLOW_PRINTING, PdfWriter.STANDARD_ENCRYPTION_40);// 设置中文BaseFont base = null;Font fontChinese = null;try {base = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H",BaseFont.EMBEDDED);fontChinese = new Font(base, 18, Font.BOLD);} catch (DocumentException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}doc.open();doc.add(new Paragraph("我是Pro", fontChinese));doc.close();}}
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