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java圖片加水印代碼 最好有實例!!!先謝了!!
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 {
/**
* 給圖片添加水印
*
* @param filePath
* 需要添加水印的圖片的路徑
* @param markContent
* 水印的文字
* @param markContentColor
* 水印文字的顏色
* @param qualNum
* 圖片質量
* @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); // 添加水印的文字和設置水印文字出現的內容
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;
}
}
圖片水印
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”); }
*/
/**
* 把圖片印刷到圖片上
*
* @param pressImg —
* 水印文件
* @param targetImg —
* 目標文件
* @param x
* –x坐標
* @param y
* –y坐標
*/
public final static void pressImage(String pressImg, String targetImg,
int x, int y) {
try {
//目標文件
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);
//水印文件結束
g.dispose();
FileOutputStream out = new FileOutputStream(targetImg);
JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
encoder.encode(image);
out.close();
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 打印文字水印圖片
*
* @param pressText
* –文字
* @param targetImg —
* 目標圖片
* @param fontName —
* 字體名
* @param fontStyle —
* 字體樣式
* @param color —
* 字體顏色
* @param fontSize —
* 字體大小
* @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);
}
}
java中打印的pdf怎麼添加圖片水印
添加水印可以參考使用控件來添加的方法,如下:
1. 添加單個圖片水印效果:
import com.spire.pdf.*;
import java.awt.geom.Rectangle2D;
public class watermark {
public static void main(String[] args) {
//加載PDF文檔
PdfDocument doc = new PdfDocument();
doc.loadFromFile(“C:\\Users\\Administrator\\Desktop\\Sample.pdf”);
//獲取第一頁
PdfPageBase page = doc.getPages().get(0);
//設置背景圖片
page.setBackgroundImage(“C:\\Users\\Administrator\\Desktop\\logo.png”);
//設置背景區域
Rectangle2D.Float rect = new Rectangle2D.Float();
rect.setRect(280, 300, 150, 150);
page.setBackgroundRegion(rect);
//保存文檔
doc.saveToFile(“output/imageWaterMark.pdf”);
doc.close();
}
}
2. 添加平鋪圖片水印效果
import com.spire.pdf.*;
import com.spire.pdf.graphics.PdfImage;
import com.spire.pdf.graphics.PdfTilingBrush;
import java.awt.*;
import java.awt.geom.Dimension2D;
import java.awt.geom.Rectangle2D;
public class AddBackground {
public static void main(String[] args) {
//創建PdfDocument對象,並加載PDF測試文檔
PdfDocument pdf = new PdfDocument();
pdf.loadFromFile(“test.pdf”);
//遍歷文檔每一頁,加載圖片,並設置成平鋪背景(水印)
for (int i = 0; i pdf.getPages().getCount();i++)
{
PdfPageBase page = pdf.getPages().get(i);
Dimension2D dimension2D = new Dimension();
dimension2D.setSize(page.getCanvas().getSize().getWidth()/4, page.getCanvas().getSize().getHeight()/3);
PdfTilingBrush brush = new PdfTilingBrush(dimension2D);
brush.getGraphics().setTransparency(0.2f);
brush.getGraphics().translateTransform(brush.getSize().getWidth()/10,brush.getSize().getHeight()/10);
brush.getGraphics().rotateTransform(30);
PdfImage image = PdfImage.fromImage(“logo.png”);
brush.getGraphics().drawImage(image,brush.getSize().getWidth()-image.getWidth()/2,(brush.getSize().getHeight())/2);
Rectangle2D rectangle2D = new Rectangle2D.Float();
rectangle2D.setFrame(new Point(0,0),page.getCanvas().getClientSize());
page.getCanvas().drawRectangle(brush,rectangle2D);
}
//保存文檔
pdf.saveToFile(“SetTiledBackground.pdf”);
pdf.dispose();
}
}
註:這裡使用的是free Spire.Pdf.jar(以上代碼參考自文章1、文章2)
java(最好jsp)給圖片加水印
Java給圖片加水印
/**
* 方法描述:b給圖片增加水印./b/br
* 備 注: 在圖片上寫字符串
* 創 建 人: bo.gaobo/br
* 創建日期: 2012-09-07/br
* @param originalUrl 原始圖片存儲路徑
* @param oldImg 原圖片
* @param str 增加的字符串
* @param xLocation x坐標
* @param yLocation y坐標
* @param fontColor 顏色
* @param fontSize 字號
* @param typeFace 字體
* @param fileType 文件類型
*/
public static BufferedImage addStringToImg(String originalUrl, BufferedImage oldImg,String str,int xLocation,int yLocation, Color fontColor, int fontSize, String typeFace, String fileType) throws IOException{
FileOutputStream output = new FileOutputStream(originalUrl);
BufferedImage buffImg = oldImg;
Graphics2D g = buffImg.createGraphics();
g = buffImg.createGraphics();
g.drawImage(buffImg, null, 0, 0);
g.setColor(fontColor); //設置字體顏色
g.setFont(new Font(typeFace, Font.PLAIN, fontSize)); //設置字體和字號
g.drawString(str, xLocation, yLocation); //把字符串放在對應的坐標處
g.dispose();
ImageIO.write(buffImg, fileType, output); //設置文件類型
output.close();
return buffImg;
}
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