Different colors for pictures made from CMYK and RGB PDFs

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KM11
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Different colors for pictures made from CMYK and RGB PDFs

Post by KM11 »

We use ImageMagick as a command line tool to create thumbnails out of PDF files. This works great, but the result concerning the chromaticity is completely different when we use a RGB-PDF as the original file rather than a CMYK-PDF.

Which parameters can we set (and how) to get a consistent result?
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fmw42
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Re: Different colors for pictures made from CMYK and RGB PDF

Post by fmw42 »

Code: Select all

convert -colorspace sRGB image.pdf image.jpg
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KM11
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Re: Different colors for pictures made from CMYK and RGB PDF

Post by KM11 »

Thanks, but unfortunately this didn't work.
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fmw42
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Re: Different colors for pictures made from CMYK and RGB PDF

Post by fmw42 »

What version of Ghostscript are you using? Perhaps an upgrade to the current version would help.

Perhaps converting from CMYK to sRGB via profiles might help.

see
http://www.imagemagick.org/Usage/formats/#profiles
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