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  • 图片水印

    引命名空间using System.Drawing; 

    文字水印:

    System.Drawing.Image img = System.Drawing.Image.FromStream(FileUpload1.FileContent);
    Graphics gr = Graphics.FromImage(img);
    string s = "段誉";
    Font f = new Font("微软雅黑", 50);
    Brush b = new SolidBrush(Color.Aqua);
    PointF p = new PointF(img.Width - 200, img.Height - 100);
    gr.DrawString(s, f, b, p);
    img.Save(Server.MapPath("ul/" + DateTime.Now.ToString("yyyyMMddHHmmssms") + FileUpload1.FileName));
    Image1.ImageUrl = "ul/" + DateTime.Now.ToString("yyyyMMddHHmmssms") + FileUpload1.FileName;

    图片水印:

    System.Drawing.Image img = System.Drawing.Image.FromStream(FileUpload1.FileContent);
    System.Drawing.Image logo = System.Drawing.Image.FromFile(Server.MapPath("ul/111.PNG"));
    Graphics gr = Graphics.FromImage(img);
    PointF p = new PointF(50, 50);
    gr.DrawImage(logo, p);
    img.Save(Server.MapPath("ul/" + DateTime.Now.ToString("yyyyMMddHHmmssms") + FileUpload1.FileName));
    Image1.ImageUrl = "ul/" + DateTime.Now.ToString("yyyyMMddHHmmssms") + FileUpload1.FileName;

     PointF与Point一样!

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  • 原文地址:https://www.cnblogs.com/m110/p/8283587.html
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