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CMYK/ CMJN and PSD import problems

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boboo
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CMYK/ CMJN and PSD import problems

Tue Jun 19, 2018 9:54 am
First, Krita is supercool, I was waiting for this since a long time!

Then, as a print professional, I am superhappy with wine making indesign CS4 working under wine,
the only thing missing was a CMYN tool do deal with the PSD of the customers, and then I tried Krita,
wich ,as a drawing creating tool, is super well done, but lack of importing cleanly the PSDs (CMYN psd imported show inversions of colors).

It's really annoying since it could really complete the pipe of printing professionals who are tired of windows.
I think working on the good import of this files could really really make Krita a serious challenger in the arena of the graphic tools.
Actually for any professional of printing misimporting PSD files is dead end since they have to deal with PSD all the time.

If a plugin exist , or any solution I would like to hear it.

Thanks a lot.
BOBOO.

Last edited by boboo on Tue Jun 19, 2018 4:18 pm, edited 1 time in total.
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halla
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Re: CMYN and PSD import problems

Tue Jun 19, 2018 10:13 am
CMYN? Do you mean CMYK? Krita can load and save CMYK psd files without problems, I've just tested that. If you've got a file that doesn't work, please share it with me so I can investigate what the issue might be.
boboo
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Re: CMYN and PSD import problems

Tue Jun 19, 2018 3:48 pm
Sorry yes CMYK,
I send you the file by PM, I cannot post this in public because it's poperty of a magazine.
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halla
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Re: CMYN and PSD import problems

Tue Jun 19, 2018 4:00 pm
Right. The problem is that you're working on a multi-layered image in CMYK using the multiply blending mode. Photoshop doesn't actually use multiply but the inverse on CMYK images so the effect is like multiply in RGB mode. Krita takes multiply literally, so the effect is different in additive (RGB) and subtractive (CMYK) color models.

Whether or not this is a bug is debatable: we decided a long time ago that we wouldn't fake the maths, so multiply multiplies...
boboo
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Re: CMYN and PSD import problems

Tue Jun 19, 2018 4:16 pm
Hharggh trust me, it disqualify a lot of users from using krita....Sad...Well I understand your point of view too.
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halla
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Well, it is debatable whether people should actually draw at all in CMYK: drawing in RGB with a CMYK proofing profile and converting to CMYK for the final deliverable is often recommended instead.


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