PDFsharp & MigraDoc Forum

I have a problem to get the black color in the CMYK-Colorspace (custom CMYK color), when I want to draw a line or rectangle.
When I define the colors with C 0 M 0 Y 0 K 100, I get a value of C 100 M 100 Y 100 and K 0 in the PDF-file. (measured with acrobat 7)
I also need Objects with 400% of color (for drawing cropmarks) with C 100 M 100 Y 100 K 100.

Is this a bug of the library or make I somthing wrong?

Thanks for your help!