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() {   
  
    }   
  
    /**  
     * 把图片印刷到图片上  
     *   
     * @param pressImg --  
     *            水印文件  
     * @param targetImg --  
     *            目标文件  
     * @param x  
     * @param y  
     */  
    public final static void pressImage(String pressImg, String targetImg,   
            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);   
  
            // 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 - x, height   
                    - height_biao - y, wideth_biao, height_biao, null);   
            // /   
            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="www.143zh.com";   
            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("pressImg.jpg", "targetImg.jpg", 20, 20);   
    }   
}


注: 非whaosoft原创 在次引用只为找起来方便!