CMYK workflow. How to set and should I worry about

CMYK workflow. How to set and should I worry about

[Keith McKay]

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Colleagues

I'm getting ready to send  a book to the  printers and in their blurb 
they state "/Ensure that you are using a CMYK workflow and export to 
PDF/X-1a:2001" . /I can set the pdf format using \setupbackend but I'm 
unsure as to what to do about CMYK workflow. The book has no colour 
pages so I'm not sure if I really need to worry about CMYK workflow. 
Could someone advise?

Thanks and Best Wishes

Keith McKay
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Re: CMYK workflow. How to set and should I worry about

[Henning Hraban Ramm]

> Am 23.06.2020 um 22:28 schrieb Keith McKay <mckaymeister@gmail.com>:
> 
> Colleagues
> 
> I'm getting ready to send  a book to the  printers and in their blurb they state "Ensure that you are using a CMYK workflow and export to PDF/X-1a:2001" . I can set the pdf format using \setupbackend but I'm unsure as to what to do about CMYK workflow. The book has no colour pages so I'm not sure if I really need to worry about CMYK workflow. Could someone advise?

\setupcolors[rgb=no] to avoid rgb colors, or
\setupcolors[state=stop] to force black and white.

You must ensure yourself that your images are just black and white / greyscale (not in RGB mode).

ConTeXt does some automatical checks and conversions depending on the PDF/X standard, but I’m not sure how far that goes (e.g. PDF/X-1 prohibits transparencies, and ConTeXt cares for that).

Best, Hraban

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Re: CMYK workflow. How to set and should I worry about

[Keith McKay]

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Thanks for your reply, Hraban
Best Wishes
Keith

On Tue, 23 Jun 2020, 22:06 Henning Hraban Ramm, <texml@fiee.net> wrote:

>
>
> > Am 23.06.2020 um 22:28 schrieb Keith McKay <mckaymeister@gmail.com>:
> >
> > Colleagues
> >
> > I'm getting ready to send  a book to the  printers and in their blurb
> they state "Ensure that you are using a CMYK workflow and export to
> PDF/X-1a:2001" . I can set the pdf format using \setupbackend but I'm
> unsure as to what to do about CMYK workflow. The book has no colour pages
> so I'm not sure if I really need to worry about CMYK workflow. Could
> someone advise?
>
> \setupcolors[rgb=no] to avoid rgb colors, or
> \setupcolors[state=stop] to force black and white.
>
> You must ensure yourself that your images are just black and white /
> greyscale (not in RGB mode).
>
> ConTeXt does some automatical checks and conversions depending on the
> PDF/X standard, but I’m not sure how far that goes (e.g. PDF/X-1 prohibits
> transparencies, and ConTeXt cares for that).
>
> Best, Hraban
>
>
> ___________________________________________________________________________________
> If your question is of interest to others as well, please add an entry to
> the Wiki!
>
> maillist : ntg-context@ntg.nl /
> http://www.ntg.nl/mailman/listinfo/ntg-context
> webpage  : http://www.pragma-ade.nl / http://context.aanhet.net
> archive  : https://bitbucket.org/phg/context-mirror/commits/
> wiki     : http://contextgarden.net
>
> ___________________________________________________________________________________
>

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