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I have a PDF and I want to verify the colours being used (check that they match our corporate colour scheme for instance). Specifically, I want to check that the correct CMYK colours are being used.

How could I go about doing that?

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What do you mean with verify? –  Bernhard Oct 17 '12 at 10:45
    
@Bernhard I want to check a PDF is using the corporate colours. –  Alex Chamberlain Oct 17 '12 at 10:53
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Maybe use gcolor and click on the texts? –  warl0ck Oct 17 '12 at 23:44

2 Answers 2

You can import the PDF file into a software like Inkscape and there you can do what you want, including a color check.

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Unfortunately, Inkscape doesn't support CMYK colours, though Scribus does. This is great for smaller documents, but not for bigger ones. My PC hasn't got loads of memory, so it would be better using a CLI. –  Alex Chamberlain Oct 17 '12 at 13:05

Maybe identify from imagemagick suite will fit your needs?

Use it with -verbose switch to get information about colors:

identify -verbose file.pdf
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