Re: PS CMYK Conversions
Re: PS CMYK Conversions
- Subject: Re: PS CMYK Conversions
- From: Graeme Gill <email@hidden>
- Date: Mon, 25 Aug 2008 12:55:53 +1000
sfprintservices wrote:
Graeme Gill wrote:
You can't expect one CMYK file to target any old CMYK device
and get predictable color out of it, you need to convert to
the specific colorspace of the device for this to work well.
That's the heart of modern color management.
As I pointed out earlier 90% of the time we do not have any information
about the press running the job. The file could be printed on a digital
press, an inkjet, Web offset, sheetfed, we hardly ever know.
So what ? It doesn't help at all to throw what information you
have about the intended color away by not labeling the color space !
It's pretty simple, if you really don't know what the output device is,
then you can't convert to the output device colorspace.
Better to leave the original in a non-output targeted form (ie, ideally Lab),
and let someone further down the chain who does know what the output device
will be, convert it to CMYK.
Even if you go to a halfway house, and convert to a standard type of CMYK
space (ie. SWOP, FOGRA etc.), if you at least label what colorspace
it is by embedding the profile, then there is the possibility of re-targeting
from that to the actual output colorspace. Leave off the label, and even this isn't
possible (mystery meat).
Large multinational corps want their brand images to be reproduced where
they desire, when they desire and not to be told by the designers how to do
it.
Again, so what ? If they want flexibility with regard to the final
production, and they want a quality color result, then they
have to cope in some way with the necessity of targeting the
output device colorspace. Someone has to do it somewhere, or you'll
get bad results. You can't make this go away by wishing it - that's
reality for you.
Graeme Gill.
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