我填写一些信息  
姓名
年龄
身份证号
照片


信息填完后 怎么把这些信息生成到一张600*400的jpg图片里
为了防止伪造  给图片加一些杂色

有谁做过  帮帮忙了

图片是已经生成了   里面有文字信息      但是照片怎么办   怎么也添加不进去

求救

protected void gethua()
    {
        //string strbody = "<table width='100' height='100' border='1' cellpadding='0' cellspacing='0' bordercolor='#000000' bgcolor='#FF0000'><tr><td>&nbsp;</td></tr></table>";
        Random random = new Random();
        Bitmap bt = new Bitmap(400, 600, PixelFormat.Format24bppRgb);        
        Graphics g = Graphics.FromImage(bt);
        Font fn1 = new Font("Tahoma", 20, FontStyle.Bold);
        Font fn = new Font("Tahoma", 12, FontStyle.Bold);
        //g.Clear(Color.RoyalBlue);
        g.Clear(Color.FromName("#FAF5F5"));
        g.DrawString("准 考 证", fn1, Brushes.White, new PointF(150, 50));
        //g.DrawString(strbody, fn, Brushes.White, new PointF(10, 10));
        g.DrawString("年龄:33", fn, Brushes.White, new PointF(50, 90));
        g.DrawString("身份证:123456789", fn, Brushes.White, new PointF(50, 130));
        g.DrawString("性别:男", fn, Brushes.White, new PointF(50, 170));
        for (int i = 0; i < 1000; i++)
        {
            int x1 = random.Next(400);            
            //int x2 = random.Next(400);
            int y1 = random.Next(600);
            //int y2 = random.Next(600);
            //g.DrawLine(new Pen(Color.GreenYellow), x1, y1, x2, y2);            
            bt.SetPixel(x1, y1, Color.FromArgb(random.Next()));
        }
        g.DrawLine(new Pen(Color.GreenYellow), 30, 30, 30, 200);
        g.DrawRectangle(new Pen(Color.CornflowerBlue), 20, 20, 360, 560);        
        Response.ContentType = "image/Jpeg";
        bt.Save(Response.OutputStream, ImageFormat.Jpeg);
    }


不显示表格  我可以画   
但是图片显示不出来 我实在是无语

g.DrawString("年龄:33", fn, Brushes.White, new PointF(50, 90));
这里  根本就不识别标签

顶一下

你有什么更好的方法吗