 <p>You can use this (C#) code example. It returns a value indicating the compression type:</p> <p>1: no compression<br> 2: CCITT Group 3<br> 3: Facsimile-compatible CCITT Group 3 <br> 4: CCITT Group 4 (T.6)<br> 5: LZW</p> <pre><code>public static int GetCompressionType(Image image) { int compressionTagIndex = Array.IndexOf(image.PropertyIdList, 0x103); PropertyItem compressionTag = image.PropertyItems[compressionTagIndex]; return BitConverter.ToInt16(compressionTag.Value, 0); } </code></pre>