急待解决：给已有图片添加：文字+logo图片的水印效果

Question

给一个页面放一个image 怎么在上面添加：公司名称+公司logo的水印效果

Answer 1

你制作个这样的image不就行了？

Answer 2

用DIV做一个层覆盖过上面，或者将你的图片设成DIV的背景

Answer 3

http://blog.csdn.net/groupliu/archive/2007/04/06/1554529.aspx
我照着这个做，可以实现，你自己去看看吧

Answer 4

/**/
        /// <summary>
        /// 在图片上增加文字水印
        /// </summary>
        /// <param name="Path">原服务器图片路径</param>
        /// <param name="Path_sy">生成的带文字水印的图片路径</param>
        protected void AddWater(string Path, string Path_sy)
        {
            string addText = "51aspx.com";
            System.Drawing.Image image = System.Drawing.Image.FromFile(Path);
            System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(image);
            g.DrawImage(image, 0, 0, image.Width, image.Height);
            System.Drawing.Font f = new System.Drawing.Font("Verdana", 60);
            System.Drawing.Brush b = new System.Drawing.SolidBrush(System.Drawing.Color.Green);            g.DrawString(addText, f, b, 35, 35);
            g.Dispose();            image.Save(Path_sy);
            image.Dispose();
        }        /**/
        /// <summary>
        /// 在图片上生成图片水印
        /// </summary>
        /// <param name="Path">原服务器图片路径</param>
        /// <param name="Path_syp">生成的带图片水印的图片路径</param>
        /// <param name="Path_sypf">水印图片路径</param>
        protected void AddWaterPic(string Path, string Path_syp, string Path_sypf)
        {
            System.Drawing.Image image = System.Drawing.Image.FromFile(Path);
            System.Drawing.Image copyImage = System.Drawing.Image.FromFile(Path_sypf);
            System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(image);
            g.DrawImage(copyImage, new System.Drawing.Rectangle(image.Width - copyImage.Width, image.Height - copyImage.Height, copyImage.Width, copyImage.Height), 0, 0, copyImage.Width, copyImage.Height, System.Drawing.GraphicsUnit.Pixel);
            g.Dispose();            image.Save(Path_syp);
            image.Dispose();
        }        protected void Button2_Click(object sender, EventArgs e)
        {
            //自动保存远程图片
                WebClient client = new WebClient();
                //备用Reg:<img.*?src=([\"\'])(http:\/\/.+\.(jpg|gif|bmp|bnp))\1.*?>
                Regex reg = new Regex("IMG[^>]*?src\\s*=\\s*(?:\"(?<1>[^\"]*)\"|'(?<1>[^\']*)')", RegexOptions.IgnoreCase);
                MatchCollection m = reg.Matches(TextBox1.Text);                foreach (Match math in m)
                {
                    string imgUrl = math.Groups[1].Value;                    //在原图片名称前加YYMMDD重名名并上传                    Regex regName = new Regex(@"\w+.(?:jpg|gif|bmp|png)", RegexOptions.IgnoreCase);                    string strNewImgName = DateTime.Now.ToShortDateString().Replace("-", "") + regName.Match(imgUrl).ToString();                    try
                    {
                        //保存图片
                        client.DownloadFile(imgUrl, Server.MapPath("ImgUpload/Auto/" + strNewImgName));                    }
                    catch
                    {
                    }
                    finally
                    {                    }                client.Dispose();
            }            Response.Write("<script>alert('远程图片保存成功，保存路径为ImgUpload/auto')</script>");        }

Answer 5

静态图片简单，用Image类就可以了
动态图片麻烦一些，像gif

Answer 6

  /// <summary>
        /// 在图片上增加文字水印
        /// </summary>
        /// <param name="Path">原服务器图片路径</param>
        /// <param name="Path_sy">生成的带文字水印的图片路径</param>
        protected void AddWater(string Path, string Path_sy)
        {
            string addText = "123";
            System.Drawing.Image image = System.Drawing.Image.FromFile(Path);
            System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(image);
            g.DrawImage(image, 0, 0, image.Width, image.Height);
            System.Drawing.Font f = new System.Drawing.Font("Verdana", 60);
            System.Drawing.Brush b = new System.Drawing.SolidBrush(System.Drawing.Color.Green);            g.DrawString(addText, f, b, 35, 35);
            g.Dispose();            image.Save(Path_sy);
            image.Dispose();
        }        /**/
        /// <summary>
        /// 在图片上生成图片水印
        /// </summary>
        /// <param name="Path">原服务器图片路径</param>
        /// <param name="Path_syp">生成的带图片水印的图片路径</param>
        /// <param name="Path_sypf">水印图片路径</param>
        protected void AddWaterPic(string Path, string Path_syp, string Path_sypf)
        {
            System.Drawing.Image image = System.Drawing.Image.FromFile(Path);
            System.Drawing.Image copyImage = System.Drawing.Image.FromFile(Path_sypf);
            System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(image);
            g.DrawImage(copyImage, new System.Drawing.Rectangle(image.Width - copyImage.Width, image.Height - copyImage.Height, copyImage.Width, copyImage.Height), 0, 0, copyImage.Width, copyImage.Height, System.Drawing.GraphicsUnit.Pixel);
            g.Dispose();            image.Save(Path_syp);
            image.Dispose();
        }