public void SaveThumbnail(string path, string thumbnailPath, int newWidth, int newHeight)  {      System.Drawing.Image i = System.Drawing.Image.FromFile(path);      System.Drawing.Image thumbnail = new System.Drawing.Bitmap(newWidth, newHeight);      System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(thumbnail);      g.DrawImage(i, 0, 0, newWidth, newHeight);      thumbnail.Save(thumbnailPath, System.Drawing.Imaging.ImageFormat.Jpeg);  }