On Thursday 16 March 2006 10:56, Frédéric wrote: > 3) How do I "tag" a jpeg or tiff file with a specified colorspace ? Where > is this information stored ? EXIF "colorspace" field for jpeg ? I think this one remained unanswered. If you mean how to assign a icc profile to a certain image and then store this profile in the metainfo of the jpeg or tiff file, you could certainly use imagemagick tools. "convert no_icc_profile.jpeg -profile sRGB.icm with_icc_profile.jpeg" would assign and embedd the ICM profile stored in sRGB.icm file (you must have it) "identify -verbose image.jpeg" will tell you what metainfo is embedded in the image file. or check out http://www.imagemagick.org/script/command-line-options.php#profile to know more. There are certainly other tools providing the same functionality. -- Milan Knizek knizek (na) volny (tecka) cz http://www.milan-knizek.net