CMYK PDF to CMYK TIF color problem

[sourcerer]

Hello,

when i try to convert a 8bit CMYK PDF to 8 bit CMYK TIF colors are changing.

convert -density 300 example.pdf -depth 8 -quality 100 -profile ISOcoated_v2_eci.icc example.tif

identify -verbose shows me that the TIF is an CMYK 8bit TIF using ISO Coated v2 (ECI) Profile. But the Color Values are different.

Hope for help,

Maik

I'm using:
Version: ImageMagick 6.5.1-0 2009-08-27 Q16 on UBUNTU LINUX

Edit: example page with used files http://www.maik-juergens.de/imagemagick/

[sourcerer]

Using Ghostscript without Imagemagick solved my problem.

gs -q -dNOPAUSE -sDEVICE=tiff32nc -dProcessColorModel=/DeviceCMYK -sOutputFile=farbtest_test.tif farbest.pdf -c quit