So you want to print something (like a banner) but the printers have asked for it to be int the CMYK colorspace? Well we could argue about how to spell colour or whether CMYK is a colorspace at all. But I can’t be bothered, let’s just cut and paste this command which is what I came up with after a morning of hacking…
convert -resize 9520 -density 300 rgb_input.pdf +profile icm -profile sRGB_IEC61966-2-1_black_scaled.icc -profile SWOP2006_Coated3v2.icc -quality 85 cmyk_output.jpeg
Importantly, rgb_input.pdf was exported with scribus using the output mode for screen.
Here are some dependencies for you macboy:
brew install ghostscript brew install imagemagick --with-little-cms brew cask install xquartz brew cask install inkscape brew cask install scribus
You’ll find ICC profiles here.
Yes, this is another blog just for my personal notes
UPDATE for moo.com users:
Moo suggest you upload media with the ‘Coated FOGRA39′ ICC profile. You can find it in this zip file here. Moo also have some suggested resolutions for uploaded media although I just multiplied those up a bit to make sure the quality was extra high just in case.
convert -resize 6192 -density 600 rgb_input.pdf +profile icm -profile sRGB_v4_ICC_preference.icc -profile CoatedFOGRA39.icc -quality 85 cmyk_output.jpeg
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