On Sun, Aug 16, 2009 at 9:30 PM, Khaled Hosny wrote: > With the sample below, the resulting PDF will crash MuPDF, Adobe Reader > will show an empty page (though in a longer document it shows a message > saying the file is broken and just few pages are rendered while the rest > is blank), Evince will open the file and show the text correctly but > will give the following errors in the terminal: > > Error: ExtGState 'GSoverprint' is unknown > Error: ExtGState 'GSknockout' is unknown > .... > > Rebeated several time. > > Sample: > > \setupcolors[overprint=yes] > \starttext > Hello \TeX. > \stoptext > > ConTeXt version 2009.08.13 and 2009.08.16 > Looks ok here with last mkiv stable and luatex beta-0.42.0-2009071723 If you have a mkiv beta, maybe you need last luatex trunk from svn . # context --version && luatex --credits MTXrun | main context file: /opt/luatex/luatex-lunatic/minimals-git/tex/texmf-context/tex/context/base/context.tex MTXrun | current version: 2009.07.17 17:23 This is LuaTeX, Version beta-0.42.0-2009071723 The LuaTeX team is Hans Hagen, Hartmut Henkel, Taco Hoekwater. LuaTeX merges and builds upon (parts of) the code from these projects: tex by Donald Knuth etex by Peter Breitenlohner, Phil Taylor and friends omega by John Plaice and Yannis Haralambous aleph by Giuseppe Bilotta pdftex by Han The Thanh and friends kpathsea by Karl Berry, Olaf Weber and others lua by Roberto Ierusalimschy, Waldemar Celes, Luiz Henrique de Figueiredo metapost by John Hobby, Taco Hoekwater and friends. xpdf by Derek Noonburg (partial) fontforge by George Williams (partial) Some extensions to lua and additional lua libraries are used, as well as libraries for graphic inclusion. More details can be found in the source. Code development was sponsored by a grant from Colorado State University via the 'oriental tex' project, the TeX User Groups, and donations. Compiled with libpng 1.2.38; using libpng 1.2.38 Compiled with zlib 1.2.3; using zlib 1.2.3 Compiled with xpdf version 3.02pl3 -- luigi