The GIMP CMYK support

7 replies [Last post]
mangeur de nuage
Offline
Joined: 09/27/2015

Hello everyone,

I'm not going to ask about how to activate CMYK in the gimp I know that it's not in there.
It's actually quite a pain in the ass because I work times to times with some graphiste and most of them are willing to use free/libre software but they can't or do not want because the gimp can't (or with difficulty) use CMYK images.

Free software give the freedom to anyone who program to make is own modification and it also gives this possibility to those who don't know how to program by having the freedom to ask someone else.

It has been a really long problem and some people are crowdfunding on this
https://freedomsponsors.org/issue/182/cmyk-support

The discussion is here:
https://bugzilla.gnome.org/show_bug.cgi?id=123598

there are also other asked feature look here
https://freedomsponsors.org/project/130/GIMP#/GIMP

Happy hacking

SuperTramp83

I am a translator!

Offline
Joined: 10/31/2014

I remember there was a plugin for that, it's called separate or separate+ or something.

mangeur de nuage
Offline
Joined: 09/27/2015

yep (it's Separate+) but it's not maintained anymore and it still needs some work

http://registry.gimp.org/node/471

SalmanMohammadi
Offline
Joined: 02/23/2012
Legimet
Offline
Joined: 12/10/2013

Krita has CMYK support: https://krita.org

mangeur de nuage
Offline
Joined: 09/27/2015

I know m8 ;)

Also update on about this post:
I have tried to contact the guy who created the cmyk proposition but he didn't respond and I have also tired to contact the admins but not responses either so I think the website is dead.

To bad the website had a good idea.

I wonder what resources you need to make something similar ?

ADFENO
Offline
Joined: 12/31/2012

Replying to the last message since I don't have the first/original
message that started this discussion.

I have experimenting with how GIMP works with color profiles, and it
seems that it can open images made with different color profiles, using
the corresponding color profiles (as long as you do have them), but GIMP
cannot create the images with such non-RGB profiles from the start. I
haven't tested this yet, but my best bet would be using Inkscape to
create a simple image, assigning the correct color profile to the file
properties, and then use GIMP to do the editing. Of course, Inkscape
(and probably, GIMP) only works with .icc/.icm color profiles, so,
assuming you have `icc-profiles-free` and `argyll` packages installed,
you have to use Argyll's `colprof` command to convert every .ti3 color
profile from `icc-profiles-free` to .icc, like this:

# Begin of commands
for each in "/usr/share/color/icc/"*".ti3"; do
colprof "${each%\.ti3}"
done
# End of commands

Another possibility is to buy a printer that expects RGB images and
converts them to CMYK when printing, thus eliminating the needed for
CMYK-oriented workspace setups.

commodore256
Offline
Joined: 01/10/2013

I hear they're not even messing with CMYK or NDE until they port to GTK3 and they're not going to port to GTK3 until they finish the GEGL Port.