Bitmap bmpSrc; Bitmap bmpDest = new Bitmap(newSize.Width, newSize.Height); using (Graphics g = Graphics.FromImage(bmpDest)) { g.InterpolationMode = InterpolationMode.HighQualityBicubic; g.CompositingMode = CompositingMode.SourceCopy; Rectangle rc = new Rectangle(0, 0, bmpSrc.Width, bmpSrc.Height); Point...