Hi,

First I want to thank the ImageMagick team :) Keep the good work :)

I use ImageMagick in a application that handle CMYK images and PDFs. And 
i've encountered a problem that is of great deal to me.

When i convert a cmyk PDF (with CMYK texts and Images) to JPG using this 
command line:

convert -colorspace CMYK original_cmyk.pdf result_cmyk.jpg

I've got the issue that the resulting JPEG image has a CMYK colorspace, 
but the K channel has no data. The PDF is converted from CMYK to CMY 
with the result of darkening the image.

I really need the CMYK colors to be keeped.

Is this a bug, or am i doing something wrong ?

Thank you for your help,

Pierre-Yves Landuré

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