import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.image.BufferedImage;
import java.io.File;
import javax.imageio.ImageIO;
public class WaterMark {
public static final String DEFAULT_FORMAT = "jpg";
public static final Color DEFAULT_COLOR = Color.LIGHT_GRAY;
public static final Font DEFAULT_FONT = new Font("Arial", Font.BOLD, 18);
public static String makeWaterMark(String fileName, String ctx)
throws Exception {
try {
String dest = execute(ctx + "/" + fileName,"dest","Water", DEFAULT_COLOR, DEFAULT_FONT);
return dest.substring(ctx.length());
} catch (Exception ex) {
return fileName;
}
}
public static String execute(String src, String dest, String text,
Color color, Font font) throws Exception {
BufferedImage srcImage = ImageIO.read(new File(src));
int width = srcImage.getWidth(null);
int height = srcImage.getHeight(null);
BufferedImage destImage = new BufferedImage(width, height,
BufferedImage.TYPE_INT_RGB);
Graphics g = destImage.getGraphics();
g.drawImage(srcImage, 0, 0, width, height, null);
g.setColor(color);
g.setFont(font);
g.fillRect(0, 0, 50, 50);
g.drawString(text, width / 5, height - 10);
g.dispose();
ImageIO.write(destImage, DEFAULT_FORMAT, new File("dest.jpg"));
return dest;
}
}