Itext官网下载jar包

/*** PDF工具类*/
public classPdfUtil {public static void main(String[] args) throwsException {//测试代码String inPath= "F://PDF//test3.pdf";String outPath= "F://PDF//test6.pdf";new PdfUtil().addWaterMark(inPath,outPath,"这是一个水印",20,10);    //添加水印new PdfUtil().delFile(inPath);     //删除源文件new PdfUtil().reNameFile(outPath,inPath);   //将水印图片重命名为源文件名
}/**** 【功能描述：添加图片和文字水印】 【功能详细描述：功能详细描述】*@paramsrcFile 待加水印文件*@paramdestFile 加水印后存放地址*@paramtext 加水印的文本内容*@paramtextWidth 文字横坐标,起点为左下角*@paramtextHeight 文字纵坐标,起点为左下角s*@throwsException*/public voidaddWaterMark(String srcFile, String destFile, String text,int textWidth, int textHeight) throwsException{//待加水印的文件PdfReader reader = newPdfReader(srcFile);//加完水印的文件PdfStamper stamper = new PdfStamper(reader, newFileOutputStream(destFile));int total = reader.getNumberOfPages();   //总页数
PdfContentByte content;//设置字体BaseFont font = BaseFont.createFont("C:/Windows/Fonts/SIMYOU.TTF",BaseFont.IDENTITY_H,BaseFont.NOT_EMBEDDED);//循环对每页插入水印for (int i = 1; i <= total; i++){//水印的起始content =stamper.getUnderContent(i);//开始
content.beginText();//设置颜色 默认为蓝色
content.setColorFill(BaseColor.BLACK);//设置字体及字号content.setFontAndSize(font, 8);//设置起始位置
content.setTextMatrix(textWidth, textHeight);//开始写入水印content.showTextAligned(Element.ALIGN_LEFT, text, textWidth,textHeight, 0);content.endText();}stamper.close();reader.close();}/*** 复制文件*@paramsrcFile*@paramdestFile*@throwsIOException*/public void copyFile(String srcFile, String destFile) throwsIOException {File file1= newFile(srcFile);File file2= newFile(destFile);InputStream in= null;OutputStream out= null;if (file1 != null &&file1.isFile()) {in= newFileInputStream(file1);}else{System.out.println("复制源文件失败!");throw newFileNotFoundException(srcFile);}if (file2 != null) {out= newFileOutputStream(file2);}byte[] bytes = new byte[1024*4];intlen;while ((len =in.read(bytes))>-1){out.write(bytes,0,len);}out.close();in.close();}/*** 重命名*@paramsrcFile*@paramdestFile*@return*@throwsIOException*/public boolean reNameFile(String srcFile, String destFile) throwsIOException {File file1= newFile(srcFile);File file2= newFile(destFile);System.out.println(srcFile+" 重命名为 "+destFile+" 成功");returnfile1.renameTo(file2);}/*** 删除*@paramsrcFile*@return*@throwsIOException*/public boolean delFile(String srcFile) throwsIOException {File file1= newFile(srcFile);System.out.println("删除 "+srcFile+" 成功");returnfile1.delete();}}

Swing界面

public classPdfWaterMark {privateJButton btnSelect;privateJList list1;privateJList list2;privateJPanel mainPnl;privateJPanel btnPnl;privateJButton btnOK;static PdfWaterMark pdfWaterMark = null;static DefaultListModel dlmCommon = newDefaultListModel();static DefaultListModel dlmError = newDefaultListModel();static File root = null;public static voidmain(String[] args) {JFrame frame= new JFrame("水印添加工具");frame.setIconImage(new ImageIcon("src/main/resources/pdf.png").getImage());    //iconframe.setSize(400,300);    //窗口大小frame.setLocation(200,200);    //窗口位置
pdfWaterMark= newPdfWaterMark();    JPanel panel=pdfWaterMark.mainPnl;JPanel bpnl=pdfWaterMark.btnPnl;bpnl.setBounds(20,20,100,150);pdfWaterMark.list1.setModel(dlmCommon);pdfWaterMark.list2.setModel(dlmError);pdfWaterMark.btnSelect.setSize(50,30);frame.setContentPane(panel);frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);frame.setVisible(true);}publicPdfWaterMark() {btnSelect.addActionListener(newActionListener() {public voidactionPerformed(ActionEvent e) {JFileChooser chooser= new JFileChooser();    //文件选择器chooser.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES);   //可选择文件和文件夹chooser.setDialogTitle("选择根文件夹");     //对话框titlechooser.showDialog(new Label(), "选择");   //确定按钮textroot = chooser.getSelectedFile();   //获取选择文件or文件夹if(root!=null){pdfWaterMark.btnSelect.setText(root.getAbsolutePath());}else{pdfWaterMark.btnSelect.setText("选择根文件夹");}}});btnOK.addActionListener(newActionListener() {public voidactionPerformed(ActionEvent e) {if(root == null){JOptionPane.showMessageDialog(null, "请选择跟目录", "提示", JOptionPane.WARNING_MESSAGE);return;}//获取配置文件路径String iniPath = getIni(root);   //获取根文件夹中的ini配置文件绝对路径,返回zero或者more时为异常if (iniPath.equals("more")){JOptionPane.showMessageDialog(null, "请确保只有一个ini配置文件!", "错误", JOptionPane.ERROR_MESSAGE);return;}else if(iniPath.equals("zero")){JOptionPane.showMessageDialog(null, "无ini配置文件!", "错误", JOptionPane.ERROR_MESSAGE);return;}if (root.isDirectory()) {   //判断选择的文件是否为文件夹File[] pdfDirs = root.listFiles();   //获取根文件夹下的所有文件pdfDirs(文件夹和.ini)for (File pdfDir : pdfDirs) {    //遍历pdfDirsif (pdfDir.isDirectory()){    //当时文件夹时String dirName = pdfDir.getName();   //pdfDir文件夹名String detailInfo = null;   //水印详细信息if((detailInfo=isContaint(dirName,iniPath)) != null){   //配置文件中是否有文件名,如果有,则返回所有信息File[] pdfs = pdfDir.listFiles( new FilenameFilter() {    //获得pdfDir文件夹下所有的pdf文件public booleanaccept(File dir, String name) {if (name.endsWith(".pdf")){    //只过滤.ini文件结尾的文件return true;}return false;}});//将pdfDir所有的文件列出来if(pdfs == null || pdfs.length ==0){dlmError.addElement(pdfDir.getAbsoluteFile()+"文件夹下无pdf文件");}for (File pdf:pdfs){   //遍历pdf文件String inPath = pdf.getAbsolutePath();    //pdf绝对路径String outPath = pdf.getParent()+"\\"+System.currentTimeMillis()+pdf.getName(); //水印pdf绝对路径try{new PdfUtil().addWaterMark(inPath,outPath,detailInfo,20,10);   //加水印new PdfUtil().delFile(inPath);   //删除源文件new PdfUtil().reNameFile(outPath,inPath);   //将水印文件名重命名为源文件名dlmCommon.addElement(inPath+"水印添加成功");}catch(Exception e1) {e1.printStackTrace();}}}else{dlmError.addElement("ini配置文件中无 "+dirName+" 信息");}}}}else {   //选择的不是文件夹JOptionPane.showMessageDialog(null, "请选择根文件夹", "警告", JOptionPane.WARNING_MESSAGE);}//执行完毕后将错误日志打印到errorLog.txttry{File errParent= new File(new File("").getCanonicalPath());   //获取项目路径File errLog = new File(errParent.getParent()+"/errLog.txt");  //项目父级if(!errLog.exists()){     //无文件则创建
errLog.createNewFile();}FileOutputStream fw= new FileOutputStream(errLog,true);OutputStreamWriter ost= newOutputStreamWriter(fw);BufferedWriter bw= newBufferedWriter(ost);Object[] arr=dlmError.toArray();SimpleDateFormat simpleDateFormat= new SimpleDateFormat("yyyy-hh:mm:ss ");String curtime= simpleDateFormat.format(newDate(System.currentTimeMillis())).toString();bw.write(curtime+"\r\n");for(Object obj : arr){bw.write(new String((obj.toString()+"\r\n").getBytes(),"utf-8"));}bw.write("\r\n");bw.close();ost.close();fw.close();}catch(IOException e1) {e1.printStackTrace();}}});}/*** 根据根目录文件夹获取ini配置文件路径*@paramrootDir  根目录文件夹*@returnmore 多个配置文件*          zero 无配置文件*          返回ini绝对路径*/publicString getIni(File rootDir){FilenameFilter filenameFilter= new FilenameFilter() {    //文件名过滤器public booleanaccept(File dir, String name) {if (name.endsWith(".ini")){    //只过滤.ini文件结尾的文件return true;}return false;}};File[] files= rootDir.listFiles(filenameFilter);    //获取文件夹中的ini配置文件if (files.length > 1){return "more";}else if(files.length == 0){return "zero";}else{for(File file:files){System.out.println("找到配置文件:"+file.getAbsolutePath());returnfile.getAbsolutePath();}}return null;}/*** 判断dirName是否存在iniPath配置文件中*@paramdirName  文件名*@paraminiPath  配置文件绝对路径*@return*/publicString isContaint(String dirName,String iniPath){try{FileReader fileReader= new FileReader(new File(iniPath));   //FileReader封装FileBufferedReader bufferedReader = new BufferedReader(fileReader);  //BufferedReader封装FileReaderString line = null;//逐行读取配置文件while ((line=bufferedReader.readLine())!=null){if (new String(line.replace(" ","").getBytes(),"utf-8").contains(dirName)){  //配置文件中按空格分开信息，将所有信息串为一个字符串System.out.println(dirName+"找到"+line);return line;   //返回文件名在配置文件中的所有信息
}}}catch(FileNotFoundException e1) {e1.printStackTrace();}catch(IOException e1) {e1.printStackTrace();}return null;}}

Maven POM文件

    <properties><itext.version>5.5.10</itext.version></properties><dependencies><dependency><groupId>antlr</groupId><artifactId>antlr</artifactId><version>2.7.2</version></dependency><dependency><groupId>com.itextpdf</groupId><artifactId>itextpdf</artifactId><version>${itext.version}</version></dependency><dependency><groupId>com.itextpdf</groupId><artifactId>itext-pdfa</artifactId><version>${itext.version}</version></dependency><dependency><groupId>com.itextpdf</groupId><artifactId>itext-xtra</artifactId><version>${itext.version}</version></dependency><dependency><groupId>com.itextpdf.tool</groupId><artifactId>xmlworker</artifactId><version>${itext.version}</version></dependency><dependency><groupId>com.itextpdf</groupId><artifactId>itext-asian</artifactId><version>5.2.0</version></dependency></dependencies>

然后打包成jar包

structure-->artifacts

新建libs文件夹将jar包拖入

点击jar包编辑classpath

打包结果如图

完成后在jar包所在位置执行java -Dfile.encoding=utf-8 -jar xx.jar即可。

exe4j可将jar转换为exe文件，官网。

因为有的人电脑上没有jdk或者jre，所以为了每个人都能用， 将jre拷贝在项目同级。

新建start.bat文件，文件内容为

"./jre7/bin/java.exe" -Dfile.uncoding=utf-8 -jar ./pdf15_jar/pdf15.jar

源码