Am 01.09.2011 15:30, schrieb Honza Hejzl:
Hello, I am trying to embed a profile but it doesn't work. I am using:
\setupbackend [format=PDF/X-1a:2001, intent=Coated FOGRA39 (ISO 12647-2:2004), file=CoatedFOGRA39.icc, option=always ]
Acrobat Preflight says it has not profile embedded. Am I doing something wrong?
Mh, maybe add a comma after 'option=always'? You can also add \enabletrackers[backend.pdfx] in front of the \setupbackend command to get additional info in the log. Is there a reason to force embedding of the profile? If I remember right PDF/X-1a can do without, if the profile is common. \setupbackend [format=PDF/X-1a:2001, intent=Coated FOGRA39 (ISO 12647-2:2004), option=always, % for a much bigger document :-) ] should be enough ('file' is derived from the entry in colorprofiles.xml). A profile with this name should be in the specific path. See http://wiki.contextgarden.net/PDFX#ICC%20profiles for the details. The mentioned $OSCOLORDIR variable is no longer valid.
The next thing is I am using text smaller than 12pt and nothing helps me to prevent ConTeXt to:
1) overprint the GRAY text (\setupcolors allows just to set cmyk-gray/rgb); 2) knockout text smaller than 12pt, what is not allowed in a good pdf file.
Just guessing (your description rings a bell): Use '\startoverprint ... \stopoverprint', not the global '\setupcolors[overprint=yes]'. The latter is only useful, if your document is pure black text only (everything in it is overprinted)! Best wishes, Peter