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Bug 123598 - CMYK support
CMYK support
Product: GIMP
Classification: Other
Component: General
Other All
: Normal enhancement
: Future
Assigned To: GIMP Bugs
: 102398 128506 347525 504511 569348 686767 (view as bug list)
Depends on: 78265
Reported: 2003-09-30 23:26 UTC by bzmc
Modified: 2018-05-24 10:55 UTC
See Also:
GNOME target: ---
GNOME version: ---

Description bzmc 2003-09-30 23:26:43 UTC
There is no working plug-in for CMYK color mode in Gimp.  Someone should 
create one.  We need the ability to save and open and view CMYK files.  
If you develop one or find a working one please e-mail  Note, I did find ONE partially working one but it 
has some bugs.  I can't remember where I downloaded it from or what it's 
called.  If you want a copy of it though, e-mail me at
Comment 1 Sven Neumann 2003-10-01 00:33:42 UTC
A Google search on "CMYK GIMP plug-in" gives some links to GIMP
plug-ins that handle import and especially export of CMYK images.
Comment 2 Sven Neumann 2003-10-02 22:03:08 UTC
The report is a big vague but we could leave it open as a tracking bug
for adding CMYK support.
Comment 3 Sven Neumann 2003-10-23 13:44:20 UTC
*** Bug 102398 has been marked as a duplicate of this bug. ***
Comment 4 Sven Neumann 2003-12-04 11:38:07 UTC
*** Bug 128506 has been marked as a duplicate of this bug. ***
Comment 5 Sven Neumann 2003-12-04 11:39:50 UTC
Bug #128506 mentions the ability to configure the Black Ink Limit and
Total Ink Limit. This should be considered when CMYK support is being

Comment 6 claus 2004-05-10 10:16:19 UTC
a complete CMYK support would also include support of spot colours (as just 
another channel). It would also be good to support any colour configuration (e.
g. CMY, CMYK + spot channels, K + spot channels on coloured paper, etc.) when 
doing conversions from RGB.
Comment 7 k_b0000 2004-08-13 16:03:37 UTC
is this bug also for version 2 of gimp or is there a separate bug for wish of
adding CMYK-support in gimp 2.0?

Comment 8 Michael Schumacher 2004-08-13 16:52:53 UTC
This bug is for "Target Milestone: Future", which currently means "GIMP 2.2 or
later". GIMP 1.2.x is no longer maintained, and GIMP 2.0 won't get any new features.
Comment 9 Gerhard Gaußling 2004-12-11 16:00:16 UTC
I suggest to set the version to current cvs. I'm not allowde to do it. 
Here is a message I send to the gimp-users Maillist  
Yes it's possible with lcms and the 'seperate' plugin by Alastair M.   
Robinson <blackfive [ a t ]>.  
He send me a copy of an improved version for gimp 2.x.  
I received a message from the developer of the separate plugin, which   
can be found at the bottom of this message. - Thank you Alastair, for   
your reply, and the improved source!  
He attached a new version of that plugin with two new checkboxes in the   
"pick the icc profiles" for "preserve pure black" and "overprint pure   
It tries to load these default profiles from the scribus default profile   
folder :  
The rendering intend is according to the source perceptual, which is   
often optimal for photographics ( INTENT_PERCEPTUAL, 0); ), but the   
proof appears to me a little bit too yellowish, so that I thought it   
was rendered with an absolute intend, which also simulate the   
As a feature-request I would it find helpfull, if one is able to choose   
also the rendering intend, and to preselect a default rendering intent   
(e.g. perceptive renderin intent as the default intend).  
Also a detection of embedded profiles while opening an image, and a   
strategies to convert the image into a working colorspace is highly   
appreciate for an integrated colormanagement of the GIMP.   
But I think this will come if the gimp comes with the new rewritten   
engine Gegl -- Generic Graphical Library (  
The binary oft "separate" works now for debian SID, too.  
Alastair attached a tarball with the source and the linux-binary, which   
I don't want to send to the list. If someone is interested in the   
source, please, let me know.   
Kind regards  
Gerhard Gaußling  
PS.: I hope I was sufficely able to express myself in English  
----------  forwarded message  ----------  
Subject: Re: appendix Re: HOWTO build and package CMYK separate plugin   
for the GIMP (SID)  
Date: Freitag 08 Oktober 2004 20:26  
From: "Alastair M. Robinson" <blackfive< <.a.t.> >>  
To: ggrubbish <at>  
Hi Gerhard,  
gerhard wrote:  
> So I have to compile it from source.  
> Alastair, please is it possible to host your project on sourceforge  
> to make it easier to develope it by other developer, because you  
> mentioned that you got no time to maintain the source?  
I'd have no objection to someone doing that - the source is GPL after  
all - but it's also possible that it will be made an integral part of  
the main GIMP distribution, in which case there'd be little point.  
There's currently a slight logjam in doing that with the recent  
discussion about whether we can get useful colour-management into the  
next release - if we do, then the separate plugin will need re-writing  
 a little.  
> I will try to figure out what I need to change in the Makefile to  
> compile it for the GIMP 2.04 on debian SID.  
Try the attached archive - it compiles here on Mandrake 9.2 and a  
current GIMP system.  Hopefully it shouldn't need much, if any,  
modification for Debian.  (There are also a couple of new features in  
this version that I'll leave you to discover...)  
All the best,  
Alastair M. Robinson  
Note You'll probably find the attachement (>600 kB) here:  
If not, send me an email, or if it is o.k. I will try to apply the Attachment  
(sourcecode etc.) within the bugreport.   
Gerhard Gaußling grubbish <at>  
Comment 10 Albert Cahalan 2005-01-23 01:15:02 UTC
Following that link to the mailing list
archives, I'd have to say the project looks to be long-dead.

Spot colors are special; for example you might want to use
greenish ink that changes color with viewing angle. >:-)

For the rest, doing this as an export conversion is best.
Working in a 4-axis color space is a big mess. If you work
in RGB, then any CYMK-related bugs are to be found in a
relatively small bit of export code. Also, CYMK is not as
well standardized as RGB is. Probably the conversion should
be left up to the printing service, since they will (should)
know the exact properties of their printer and the correct
mapping from sRGB (and others) to their device-specific CYMK.
Comment 11 Simon Budig 2006-07-14 15:27:46 UTC
*** Bug 347525 has been marked as a duplicate of this bug. ***
Comment 12 Raphaël Quinet 2007-03-08 17:22:34 UTC
Adding a dependency on bug #78265 because it doesn't really make sense to support CMYK without knowing the color profile of the target device.

Anyway, this bug report could become irrelevant once the GEGL integration is done.  
And contrary to what is mentioned in comment #10, GEGL ( is in active development, as one can see from the SVN logs (
Comment 13 Raphaël Quinet 2007-12-19 20:30:54 UTC
*** Bug 504511 has been marked as a duplicate of this bug. ***
Comment 14 Sean Smith 2008-10-03 17:45:38 UTC
I lieu of a voting system, I hereby declare my wish for CMYK report in the GIMP.
Comment 15 Martin Nordholts 2009-01-27 19:33:52 UTC
*** Bug 569348 has been marked as a duplicate of this bug. ***
Comment 16 P 2009-08-17 09:02:08 UTC
Question: it's now version 2.6.7, gimp has gegl and color management. Is full CMYK (and other color spaces) support planned for implementation in some forseeable future? I mean real CMYK support alongside with RGB, Grayscale and indexed. I work with a lot of CMYK files and I have to work with them in Corel Photopaint, which i really dislike. Possibility to work in gimp would make me really, really happy :)
Comment 17 Stephen Griffiths 2009-08-17 12:33:17 UTC
Hi P,
bugzilla is not for discussions, if you have questions please come ask on the irc channel or mailing list.

Here is a blog by Peter Sikking answering that question.

The short answer is yes, but, definitely not in 2.8.
Comment 18 Michael Natterer 2012-10-24 15:57:32 UTC
*** Bug 686767 has been marked as a duplicate of this bug. ***
Comment 19 ssameerlove 2013-05-01 17:02:28 UTC
Hi everyone. Although i literally live below the poverty line, I would like to contribute 5.00 bucks for this feature. it's not much, but it is with pleasure that i give to this project and help contribute even if in only a very small way.

 This offer is registered at FreedomSponsors (

 Once you solve it (according to the acceptance criteria described there), just create a FreedomSponsors account and mark it as resolved (oh, you'll need a Paypal account too)
 I'll then check it out and will gladly pay up!

 If anyone else would like to throw in a few bucks to elevate the priority on this issue, you should check out FreedomSponsors!
Comment 20 Deda_Zych 2015-05-16 19:41:43 UTC
Anything new about this issue?
Comment 21 Andrej.Skvortzov 2016-06-13 21:03:48 UTC
I added myself to sponsors lists for this feature on freedomsponsors. Current status is over 200$. Of course this is pretty small amount of money considering implementing such a major feature, but any way.
Comment 22 GNOME Infrastructure Team 2018-05-24 10:55:39 UTC
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