Asp.net(C#)給圖片加上浮水印效果的類

using  System;
using  System.Collections.Generic;
using  System.Text;
using  System.IO;
using  System.Drawing;

namespace  QianBianWanHua_Lib
... {
    /**//// <summary>
    /// 功能說明:給圖片加浮水印,分為文字和圖片兩種
    /// 程式員：段小勇
    /// 日期：2007-11-12
    /// </summary>
    public class PicContron
    ...{
        public PicContron()
        ...{

        }

        /**//// <summary>
        /// 給圖片加上文字浮水印,位置在圖片的右下角
        /// </summary>
        /// <param name="PicPath">圖片路徑</param>
        /// <param name="Text">在圖片上的文字</param>
        public static void AddTextToPic(string PicPath,string Text)
        ...{
            System.Drawing.Image image = System.Drawing.Image.FromFile(PicPath);
            Graphics g = Graphics.FromImage(image);
            int _intX = 0;
            int _intY = image.Height;
            try
            ...{
                _intX = image.Width - 180;
            }
            catch
            ...{
                _intX = 0;
            }
            try
            ...{
                _intY = image.Height - 60;
            }
            catch
            ...{
                _intY = 0;
            }
            g.DrawImage(image, 0, 0, image.Width, image.Height);
            Font f = new Font("Verdana", 20);
            Brush b = new SolidBrush(Color.Red);            
            g.DrawString(Text, f, b, _intX, _intY);
            g.Dispose();
            image.Save(PicPath+"t");
            image.Dispose();
            if (File.Exists(PicPath))
            ...{
                File.Delete(PicPath);
            }
            if (File.Exists(PicPath+"t"))
            ...{
                File.Move(PicPath + "t", PicPath);
            }
    &nb