Am 13.05.2011 um 12:57 schrieb Paul Isambert: > LaTeX doesn't rely on pdfTeX anyway, so it shouldn't allow filenames with spaces and the behavior in LuaTeX shouldn't be troublesome. Maybe that's indeed the simplest solution: \def\document{ \endgroup \IfJobnameContainsSpaces \errmessage{Don't to this} \endinput\fi ... }