java 为pdf添加水印图片
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from http://blog.csdn.net/oxiaoxio/article/details/49512763
首先需要引入两个Jar包分别是:iTextAsian.jar 、itext-2.1.7.jar 可以去 http://download.csdn.net/detail/work201003/9227159 下载;
代码:
- 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 com.lowagie.text.DocumentException;
- import com.lowagie.text.Element;
- import com.lowagie.text.Image;
- import com.lowagie.text.PageSize;
- import com.lowagie.text.pdf.BaseFont;
- import com.lowagie.text.pdf.PdfContentByte;
- import com.lowagie.text.pdf.PdfGState;
- import com.lowagie.text.pdf.PdfReader;
- import com.lowagie.text.pdf.PdfStamper;
-
- public class TestWaterPrint {
- public static void main(String[] args) throws DocumentException,
- IOException {
-
- BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(new File("E:/abc.pdf")));
- Calendar cal = Calendar.getInstance();
- SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
-
- setWatermark(bos, "D:/itext.pdf", format.format(cal.getTime())
- + " 下载使用人:" + "测试user", 16);
- }
-
- public static void setWatermark(BufferedOutputStream bos, String input,
- String waterMarkName, int permission) throws DocumentException,
- IOException {
-
- PdfReader reader = new PdfReader(input);
- PdfStamper stamper = new PdfStamper(reader, bos);
- int total = reader.getNumberOfPages() + 1;
- PdfContentByte content;
- BaseFont base = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H",BaseFont.EMBEDDED);
- PdfGState gs = new PdfGState();
- for (int i = 1; i < total; i++) {
- content = stamper.getOverContent(i);
-
- gs.setFillOpacity(0.2f);
-
- content.beginText();
- content.setColorFill(Color.LIGHT_GRAY);
- content.setFontAndSize(base, 50);
- content.setTextMatrix(70, 200);
- content.showTextAligned(Element.ALIGN_CENTER, "公司内部文件,请注意保密!", 300,350, 55);
- Image image = Image.getInstance("D:/itext2.png");
-
-
-
-
-
-
- image.setAbsolutePosition(200, 206);
- image.scaleToFit(200,200);
- content.addImage(image);
- content.setColorFill(Color.BLACK);
- content.setFontAndSize(base, 8);
- content.showTextAligned(Element.ALIGN_CENTER, "下载时间:"
- + waterMarkName + "", 300, 10, 0);
- content.endText();
-
- }
- stamper.close();
- }
- }
原文档图
效果图:
更多详细代码请查看:http://www.open-open.com/lib/view/open1339726488115.html
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