Making a cmyk PDF

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Peter

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Feb 3, 2011, 7:28:56 AM2/3/11
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If I use xcolor and \definecolor exclusively to create CMYK colours,
how do I tell pdflatex to create a PDF that identifies itself as using
only the CMYK colorspace?

///Peter

William F. Adams

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Feb 3, 2011, 8:41:35 AM2/3/11
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You'd need a chunk of code like to:


\immediate\pdfobj stream attr{/N 4} file{sRGBIEC1966-2.1.icm}
\pdfcatalog{%
/OutputIntents [ <<
/Type /OutputIntent
/S/GTS_PDFA1
/DestOutputProfile \the\pdflastobj\space 0 R
/OutputConditionIdentifier (sRGB IEC61966-2.1)
/Info(sRGB IEC61966-2.1)
>> ]
}


but you'd need to feed it a CMYK profile, and would have to ensure
that every element going in was defined as CMYK. More information
here:

http://support.river-valley.com/wiki/index.php?title=Generating_PDF/A_compliant_PDFs_from_pdftex

William

Herbert Voss

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Feb 3, 2011, 8:54:28 AM2/3/11
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did you also \usepackage[cmyk]{xcolor} ?

Herbert

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