Comments (9)
I can add a PDFX3 CYMK version. A quick comparison on screen suggests that the blue is (as usual) the main victim of the CYMK conversion:
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🤷
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To be future-safe I think one pretty good way would be to agree on CIELAB or CIEXYZ colorspace values, and point people to tools like icclu
(see http://www.argyllcms.com/ ) that can translate these colorspaces to pretty much any sensible color system out there.
EDIT: liblcms2-utils
seems also pretty useful, like transicc
. ( https://www.littlecms.com/tags/lcms2/ )
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Sure, but I would rather have us convert the blue in a standardized way than leaving it to the printer.
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Hi everyone, +1ing this.
Just specifying the actual colorspace for the RGB colors (is it adobe RGB?) would help a lot already. Additionally, the usual CMYK conversion tools suck, so having a method in place to convert it with given colorimetric intent in mind would be super helpful. (E.g., how do I print the nice julia blue on coated paper?)
Also, I'm not a big fan of pantone, but naming the pantone spot colors for the printing would be probably the easiest to do this reliably now.
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Personally, I avoid this stuff as much as possible, and try to avoid using proprietary software like Adobe and Pantone anyway. Last time I got something printed on paper I got the printer guy to do the matching/conversion for me; the professionals know their stuff and don't get paid if they get it wrong... :)
I'm more than happy for anyone experienced in this area to develop precise color specifications, and I wish them good fortune!
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Yeah, certainly not trying to go help adobe in any way, but esp. for communicating precisely with printers this may help a lot.
Anyway, I assume the current colors are sRGB?
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Anyway, for anyone searching for CMYK values, these are extracted from the pdfx3 version and print much better than srgb:
red: 0.0392151 0.875 0.832031 0.0627441
blue 0.765625 0.533203 0 0
violet 0.498047 0.662109 0 0
green 0.673828 0.0392151 0.984375 0.121582
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Anyone want to make a PR to add more printer helpful versions to the repo? I think the stance "for communicating precisely with printers this may help a lot" is the right one. We don't dictate what printing technology people may have to use, we just have to work with it and try to make the best of it.
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