On 2/16/25 11:09, Thomas Meyer wrote:\setupbackend[ format={pdf/ua-1}, profile={default_rgb.icc,default_gray.icc}, ] \setuptagging [state=start] \enabledirectives [backend.usetags=mkiv] \starttext a \stoptext is green with VeraPDF!Many thanks for your testing, Thomas.format={pdf/ua-2} is not defined I think, see: https:// source.contextgarden.net/tex/context/base/mkiv/lpdf-fmt.luaIt’s defined for MkXL (aka LMTX). See lpdf-fmt.lua from your distribution, since the ConTeXt Garden contains a version which is more than a year old). BTW, the profile mixture has a separate thread. Best, Pablo ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / https://mailman.ntg.nl/mailman3/lists/ntg-context.ntg.nl webpage : https://www.pragma-ade.nl / https://context.aanhet.net (mirror) archive : https://github.com/contextgarden/context wiki : https://wiki.contextgarden.net ___________________________________________________________________________________