Making a cmyk PDF

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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
0
Reply anglebracket (7) 2/3/2011 12:28:56 PM

On Feb 3, 7:28=A0am, Peter <anglebrac...@gmail.com> wrote:
> 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?

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=3DGenerating_PDF/A_com=
pliant_PDFs_from_pdftex

William
0
Reply William 2/3/2011 1:41:35 PM


Am 03.02.2011 13:28, schrieb Peter:
> 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?

did you also \usepackage[cmyk]{xcolor} ?

Herbert
0
Reply Herbert 2/3/2011 1:54:28 PM

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