.NET TIFF file: RGB to CMYK conversion possible without a third party library?

Question

Following up my previous question: if and how would it be possible to take RGB based TIFF files and convert them over to CMYK with standard .NET (3.5) functionality?

Answer 1

No, I don't think that's possible using standard GDI+ wrappers (System.Drawing). GDI+ only supports RGB. CMYK based images can be read by GDI+ (implicit conversion to RGB), but CMYK based images can't be written.

You might want to try something like GraphicsMill, which supports CMYK.