Posted over 6 years ago. Visible to the public.

Convert the colorspace of a PDF from RGB to CMYK under Ubuntu Linux

Note that converting from RGB to CMYK will usually degrade your colors because no exact mapping is possible. Anyway, this Stackoverflow post worked for me:

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gs -dSAFER -dBATCH -dNOPAUSE -dNOCACHE -sDEVICE=pdfwrite \ -sColorConversionStrategy=CMYK -dProcessColorModel=/DeviceCMYK \ -sOutputFile=output.pdf input.pdf

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Henning Koch
Last edit:
almost 6 years ago
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Posted by Henning Koch to makandra dev