PDF with watermark

pdf Add watermark

1. relevant jar package

   • itext-2.1.7.jar
   • iTextAsian.jar

2. The code is as follows

package com.solex.waterPrint;

import java.awt.Color;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;

import com.lowagie.text.DocumentException;
import com.lowagie.text.Element;
import com.lowagie.text.Image;
import com.lowagie.text.pdf.BaseFont;
import com.lowagie.text.pdf.PdfContentByte;
import com.lowagie.text.pdf.PdfReader;
import com.lowagie.text.pdf.PdfStamper;
/** *  to PDF Add watermark  * @author solexit06 * */
public class TestWaterPdf {
    public static void main(String[] args) throws DocumentException,IOException {
        // The file to output 
        String outFile="C:/Users/solexit06/Desktop/WaterPrint.pdf";
        // The original file to be watermarked 
        String inputFile="C:/Users/solexit06/Desktop/testWaterPrint.pdf";
        // Watermark content : company 、 date 、 Content 
        String company="** Technology Co., Ltd ";
        Date date = Calendar.getInstance().getTime();
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
        String waterMarkDate=sdf.format(date);
        String content=" Controlled documents ";
        //  Watermark the file first and then output 
        setWatermark(outFile,inputFile,company,waterMarkDate,content);
    }

    public static void setWatermark(String outFile, String inputFile,String company,
            String waterMarkDate,String content) throws DocumentException,IOException {

        PdfReader reader = new PdfReader(inputFile);// Get the input file that needs to be watermarked 
        BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(new File(outFile)));
        PdfStamper stamper = new PdfStamper(reader, bos);

        int total = reader.getNumberOfPages();// Get the number of pages of the input file 
        for (int i = 1; i <= total; i++) {
    
            PdfContentByte contentOver = stamper.getOverContent(i);// Watermark the content 
            /* Add image watermarking */
            String imgUrl="C:/Users/solexit06/Desktop/Border.png";
            Image img = Image.getInstance(imgUrl);// Get the picture to be used as a watermark 
            img.setAbsolutePosition(200, 450);// The image is at the bottom left margin of the document 
            img.scaleToFit(150, 240);// The size of the image watermark 
            img.setRotationDegrees(10);// rotate 
            contentOver.addImage(img);// Add image watermarking 

            /* Add text watermark */
            contentOver.beginText();
            BaseFont bf = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H",BaseFont.EMBEDDED);// Font instance , Affect Chinese font display 
            contentOver.setColorFill(Color.RED);// Watermark color 

            contentOver.setFontAndSize(bf, 16);// Font style and size 
            contentOver.showTextAligned(Element.ALIGN_LEFT, company, 215, 520,10);// The left margin 、 Bottom margin 

            contentOver.setFontAndSize(bf, 10);// Font style and size 
            contentOver.showTextAligned(Element.ALIGN_LEFT, waterMarkDate, 260, 505,10);// The left margin 、 Bottom margin 

            contentOver.setFontAndSize(bf, 24);// Font style and size 
            contentOver.showTextAligned(Element.ALIGN_LEFT, content, 240, 465,10);// The left margin 、 Bottom margin 
            contentOver.endText();

        }
        stamper.close();
        System.out.println(" Watermark added successfully ");
    }
}