More info : After a few tests, it seems that most of the pictures I've been sent are correctly recognized as CMYK by Krita. Only a few of them have problem and if I open them in Photoshop, they're detected as RGB too but the bits per chanel in the titlebar is "8#" instead of just "8". I don't know where the problem comes from (if a Photoshop user can tell what the "#" means, it would help). The person that sent me the pictures tells me that when he opens them in Photoshop on his PC they're in CMYK so it may be a very specific problem.
-- Bad management of CMYK files (detected as RGB) https://launchpad.net/bugs/81099 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs