Hi, I recently encountered an issue with LuaTeX (1.18.0) + Ghostscript (10.04.0) and it turns out that the culprit seems to be LuaTeX :) This may be summarized as follows: 1. Compile with `lualatex` the following `test.tex` file: --8<---------------cut here---------------start------------->8--- \documentclass{article} \begin{document} Foo. \end{document} --8<---------------cut here---------------end--------------->8--- 2. Run then the following command: --8<---------------cut here---------------start------------->8--- gs -V -P- -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -sstdout=%stderr "-sOutputFile=test.pdf.pdf" test.pdf --8<---------------cut here---------------end--------------->8--- On GNU/Linux, this returns: ┌──── │ GPL Ghostscript 10.04.0 (2024-09-18) │ Copyright (C) 2024 Artifex Software, Inc. All rights reserved. │ This software is supplied under the GNU AGPLv3 and comes with NO WARRANTY: │ see the file COPYING for details. │ Processing pages 1 through 1. │ Page 1 │ │ The following errors were encountered at least once while processing this file: │ CMap unrecoverably broken │ │ **** This file had errors that were repaired or ignored. │ **** The file was produced by: │ **** >>>> LuaTeX-1.18.0 <<<< │ **** Please notify the author of the software that produced this │ **** file that it does not conform to Adobe's published PDF │ **** specification. └──── You can find more details on how I came to LuaTeX in the TeX Live mailing list archive and on the Ghostcript's Bugzilla: ┌──── │ https://tug.org/pipermail/tex-live/2024-December/050985.html │ https://bugs.ghostscript.com/show_bug.cgi?id=708201 └──── Best regards. -- Denis