bobdobbs <for...@gimpusers.com> writes:
> Hi all.
> I'm using gimp 2.6.10 on ubuntu 10.10. I have a layered psd that has been
> edited using a CMYK colour profile. I'd like to open it. When I try, gimp
> gives me the error:
> Error loading PSD file: Unsupported color mode: CMYK
> Googling around gets me some interesting solutions. One is to use
> imagemagicks 'convert' to create each layer as a png. When I tried this, I
> got a whole bunch of generically named layers. Most of the conversions had
> failed, resulting in transparent png's with no content.
> I found this thread, nearly three years old, on ubuntuforums:
> One of the solutions proposed in it is to use a seperation filter that that
> has been created as a plugin. I found the homepage for such a plugin. It had
> a warning that the plugin should not be used, with a broken link to a better
> one to use.
> I also found this:
> This provides some information on the issue, and a link to a plugin package
> to help remedy. However, the plugin is about four years old.
> Is this a solved problem yet? Is it possible to open CMYK psd's in gimp?
Not having tried this myself,
http://en.sourceforge.jp/projects/separate-plus/ seems to be the
official download page of Separate+, also linked to from e.g.
http://registry.gimp.org/node/471 which says it provides:
CMYK TIFF import plug-in which generates the pseudo-composite image
So I would try
$ convert input.psd output.tif
and then open those tiff files in gimp with separate_import (unless
separate_import can also open psd files?)
Hope this helps,
Kevin Brubeck Unhammer
 The official homepage
http://cue.yellowmagic.info/softwares/separate.html seems to be
down, however, the Arch Linux package also points to sourceforge.jp.
The homepage of the "old" Separate plugin (without the plus) also
recommends using Separate+:
Gimp-user mailing list