How to copy an image from an URL to own server and resize it

First: Download the image with Url.

Second: Resize the image and save it into disk.

<!   1) For the first requirement, you can use WebClient class. Refer to the following code

  private void Page_Load(object sender, System.EventArgs e)

    {

        WebClient wc = new WebClient();

        byte[] data = wc.DownloadData("http://www.google.cn/intl/en-us/images/logo_cn.gif");

        MemoryStream ms = new MemoryStream(data);

        System.Drawing.Image img = System.Drawing.Image.FromStream(ms);

        GetThumbnailImage(img);//Resize Image

    }

   

->   2) For the second requirement refer to the code below:

private void GetThumbnailImage(System.Drawing.Image img)

    {

        float iScale = img.Height > img.Width ? (float)img.Height / 100 : (float)img.Width / 100;

        img = img.GetThumbnailImage((int)(img.Width / iScale), (int)(img.Height / iScale), null, IntPtr.Zero);

        MemoryStream memStream = new MemoryStream();

        img.Save(Server.MapPath("att.jpeg"), System.Drawing.Imaging.ImageFormat.Jpeg);

        memStream.Flush();

    }