How to Save Image from Another Website to our Website

public void FindSaveImages(string imgName)
{

      //create temp folder
      string tempDir = Server.MapPath("../temp");

      if (!Directory.Exists(tempDir))
      {
            Directory.CreateDirectory(tempDir);
      }


      //get download url from web.config
      string remoteFileUrl = ConfigurationManager.AppSettings.Get("DownloadImgUrl");

      //cal DownloadImageFromUrl function and get image from another websites
      System.Drawing.Image image = DownloadImageFromUrl(remoteFileUrl + imgName);

      string rootPath = tempDir;
      string fileName1 = System.IO.Path.Combine(rootPath, imgName);
      image.Save(fileName1);

      //image will save iin your temp folder
}


//send http request and get image from another websites
public System.Drawing.Image DownloadImageFromUrl(string imageUrl)
{
      System.Drawing.Image image = null;
      try
      {
            System.Net.HttpWebRequest webRequest = (System.Net.HttpWebRequest)System.Net.HttpWebRequest.Create(imageUrl);
            webRequest.AllowWriteStreamBuffering = true;
            webRequest.Timeout = 30000;
            System.Net.WebResponse webResponse = webRequest.GetResponse();
            System.IO.Stream stream = webResponse.GetResponseStream();
            image = System.Drawing.Image.FromStream(stream);
            webResponse.Close();

      }
      catch (Exception ex)
      {
            return null;
      }
      return image;
}