Le 8 janv. 2016 à 21:00, colorsync-users-request@lists.apple.com a écrit :

even without profiles you can usually tell what sort of CMYK device it was converted for just by looking at the separations.

Ok, that should be the solution. Thank you everyone. btw I know there is always a color space profile that is active by default. What I meant was, what if you find an image without an ICC profile embedded in the file. Color management is not so well known and applied... -- Serge Paulus