java写代码加水印 java添加代码

java怎么给word文档加水印

可以使用Free Spire.Doc for Java在word文档中添加文本水印或图片水印。Free Spire.Doc for Java下载链接：网页链接

1.添加文本水印——代码如下：

import com.spire.doc.*;

import com.spire.doc.documents.WatermarkLayout;

import java.awt.*;

public class WordTextWatermark {

public static void main(String[] args) {

Document document = new Document();

document.loadFromFile("Sample.docx");

insertTextWatermark(document.getSections().get(0));

}

private static void insertTextWatermark(Section section) {

TextWatermark txtWatermark = new TextWatermark();

txtWatermark.setText("内部使用");

txtWatermark.setFontSize(40);

txtWatermark.setColor(Color.red);

txtWatermark.setLayout(WatermarkLayout.Diagonal);

section.getDocument().setWatermark(txtWatermark);

}

}

2.添加图片水印——代码如下：

import com.spire.doc.*;

public class WordImageWatermark {

public static void main(String[] args)  throws Exception{

Document document = new Document();

document.loadFromFile("Sample.docx");

PictureWatermark picture = new PictureWatermark();

picture.setPicture("logo.png");

picture.setScaling(5);

picture.isWashout(false);

document.setWatermark(picture);

document.saveToFile("out/result2.docx",FileFormat.Docx )

}

}

相关问答

Q1: java图片加水印代码 最好有实例！！！先谢了！！

文字水印

import java.awt.*;

import java.awt.image.*;

import java.io.*;

import javax.swing.*;

import com.sun.image.codec.jpeg.*;

public class WaterSet {

/**

* 给图片添加水印

*

* @param filePath

* 需要添加水印的图片的路径

* @param markContent

* 水印的文字

* @param markContentColor

* 水印文字的颜色

* @param qualNum

* 图片质量

* @return

*/

public boolean createMark(String filePath, String markContent,

Color markContentColor, float qualNum) {

ImageIcon imgIcon = new ImageIcon(filePath);

Image theImg = imgIcon.getImage();

int width = theImg.getWidth(null);

int height = theImg.getHeight(null);

BufferedImage bimage = new BufferedImage(width, height,

BufferedImage.TYPE_INT_RGB);

Graphics2D g = bimage.createGraphics();

g.setColor(markContentColor);

g.setBackground(Color.white);

g.drawImage(theImg, 0, 0, null);

g.drawString(markContent, width / 5, height / 5); // 添加水印的文字和设置水印文字出现的内容

g.dispose();

try {

FileOutputStream out = new FileOutputStream(filePath);

JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);

JPEGEncodeParam param = encoder.getDefaultJPEGEncodeParam(bimage);

param.setQuality(qualNum, true);

encoder.encode(bimage, param);

out.close();

} catch (Exception e) {

return false;

}

return true;

}

}

图片水印

import java.awt.Color;

import java.awt.Font;

import java.awt.Graphics;

import java.awt.Image;

import java.awt.image.BufferedImage;

import java.io.File;

import java.io.FileOutputStream;

import javax.imageio.ImageIO;

import com.sun.image.codec.jpeg.JPEGCodec;

import com.sun.image.codec.jpeg.JPEGImageEncoder;

public final class ImageUtils {

public ImageUtils() {

}

/*

* public final static String getPressImgPath() { return ApplicationContext

* .getRealPath("/template/data/util/shuiyin.gif"); }

*/

/**

* 把图片印刷到图片上

*

* @param pressImg --

* 水印文件

* @param targetImg --

* 目标文件

* @param x

* --x坐标

* @param y

* --y坐标

*/

public final static void pressImage(String pressImg, String targetImg,

int x, int y) {

try {

//目标文件

File _file = new File(targetImg);

Image src = ImageIO.read(_file);

int wideth = src.getWidth(null);

int height = src.getHeight(null);

BufferedImage image = new BufferedImage(wideth, height,

BufferedImage.TYPE_INT_RGB);

Graphics g = image.createGraphics();

g.drawImage(src, 0, 0, wideth, height, null);

//水印文件

File _filebiao = new File(pressImg);

Image src_biao = ImageIO.read(_filebiao);

int wideth_biao = src_biao.getWidth(null);

int height_biao = src_biao.getHeight(null);

g.drawImage(src_biao, (wideth - wideth_biao) / 2,

(height - height_biao) / 2, wideth_biao, height_biao, null);

//水印文件结束

g.dispose();

FileOutputStream out = new FileOutputStream(targetImg);

JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);

encoder.encode(image);

out.close();

} catch (Exception e) {

e.printStackTrace();

}

}

/**

* 打印文字水印图片

*

* @param pressText

* --文字

* @param targetImg --

* 目标图片

* @param fontName --

* 字体名

* @param fontStyle --

* 字体样式

* @param color --

* 字体颜色

* @param fontSize --

* 字体大小

* @param x --

* 偏移量

* @param y

*/

public static void pressText(String pressText, String targetImg,

String fontName, int fontStyle, int color, int fontSize, int x,

int y) {

try {

File _file = new File(targetImg);

Image src = ImageIO.read(_file);

int wideth = src.getWidth(null);

int height = src.getHeight(null);

BufferedImage image = new BufferedImage(wideth, height,

BufferedImage.TYPE_INT_RGB);

Graphics g = image.createGraphics();

g.drawImage(src, 0, 0, wideth, height, null);

// String s="";

g.setColor(Color.RED);

g.setFont(new Font(fontName, fontStyle, fontSize));

g.drawString(pressText, wideth - fontSize - x, height - fontSize

/ 2 - y);

g.dispose();

FileOutputStream out = new FileOutputStream(targetImg);

JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);

encoder.encode(image);

out.close();

} catch (Exception e) {

System.out.println(e);

}

}

public static void main(String[] args) {

pressImage("F:/logo.png", "F:/123.jpg", 0, 0);

}

}

Q2: java 如何给pdf文件加水印

可以使用Spire.PDF for Java通过Java来添加水印。

首先，您需要在 Java 程序中添加 Spire.Pdf.jar 文件作为依赖项。您可以从这个链接下载 JAR 文件；如果您使用 Maven，则可以通过在 pom.xml 文件中添加以下代码导入 JAR 文件。

repositories

repository

idcom.e-iceblue/id

url;/url

/repository/repositoriesdependencies

dependency

groupIde-iceblue/groupId

artifactIdspire.pdf/artifactId

version5.3.1/version

/dependency/dependencies

1.添加图片水印

代码如下：

import com.spire.pdf.*;

import java.awt.geom.Rectangle2D;

public class watermark {

public static void main(String[] args) {

//加载PDF文档

PdfDocument doc = new PdfDocument();

doc.loadFromFile("C:\\Users\\Administrator\\Desktop\\Sample.pdf");

//获取第一页

PdfPageBase page = doc.getPages().get(0);  

//设置背景图片

page.setBackgroundImage("C:\\Users\\Administrator\\Desktop\\logo.png");

//设置背景区域

Rectangle2D.Float rect = new Rectangle2D.Float();

rect.setRect(280, 300, 150, 150);

page.setBackgroundRegion(rect);

//保存文档

doc.saveToFile("output/imageWaterMark.pdf");

doc.close();

}

}

2.添加文本水印

代码如下：

import com.spire.pdf.*;

import com.spire.pdf.graphics.*;

import java.awt.*;

import java.awt.geom.*;

public class Textwatermark {

public static void main(String[] args) {

//创建PdfDocument对象

PdfDocument pdf = new PdfDocument();

//加载示例文档

pdf.loadFromFile("C:\\Users\\Administrator\\Desktop\\Sample.pdf");

//获取第一页

PdfPageBase page = pdf.getPages().get(0);

//调用insertWatermark方法插入文本水印

insertWatermark(page, "E-ICEBLUE");

//保存文档

pdf.saveToFile("out/textWaterMark.pdf");

}

static void insertWatermark(PdfPageBase page, String watermark) {

Dimension2D dimension2D = new Dimension();

dimension2D.setSize(page.getCanvas().getClientSize().getWidth() / 2, page.getCanvas().getClientSize().getHeight() / 3);

PdfTilingBrush brush = new PdfTilingBrush(dimension2D);

brush.getGraphics().setTransparency(0.3F);

brush.getGraphics().save();

brush.getGraphics().translateTransform((float) brush.getSize().getWidth() / 2, (float) brush.getSize().getHeight() / 2);

brush.getGraphics().rotateTransform(-45);

brush.getGraphics().drawString(watermark, new PdfFont(PdfFontFamily.Helvetica, 24), PdfBrushes.getViolet(), 0, 0, new PdfStringFormat(PdfTextAlignment.Center));

brush.getGraphics().restore();

brush.getGraphics().setTransparency(1);

Rectangle2D loRect = new Rectangle2D.Float();

loRect.setFrame(new Point2D.Float(0, 0), page.getCanvas().getClientSize());

page.getCanvas().drawRectangle(brush, loRect);

}

}

希望对您有帮助。

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