Bitmap.RawFormat
using System; using System.IO; using System.Drawing; class MainClass { static public void Main() { Bitmap img = new Bitmap("winter.jpg"); Console.WriteLine(img.PhysicalDimension.ToString() ); Console.WriteLine(img.Height.ToString() ); Console.WriteLine(img.Width.ToString() ); Console.WriteLine(img.RawFormat.ToString() ); Console.WriteLine(img.Size.ToString() ); } }