Created attachment 149733 [details] test input The command export HOME=/home/testuser/X-C-201941787 && libreoffice --headless --convert-to pdf --outdir /home/testuser/X-C-201941787 /home/testuser/X-C-201941787/filledTemplate.odt does not generate any pdf on some systems (i.e. Linux amc-dev 3.16.0-6-amd64 #1 SMP Debian 3.16.57-2 (2018-07-14) x86_64 GNU/Linux). Same command works for root. X-C-201941787 is a temporary directory, created empty before running the conversion (in production, testuser is Apache, doing the conversion for web clients). LibreOffice is standard Debian package, LibreOffice 4.3.3.2 430m0(Build:2). filledTemplate.odt is attached but nothing special - the failure should be reproducible with basically any input. The underlying problem (found with strace) is the existence of a directory, /var/spool/libreoffice/uno_packages/cache/uno_packages/ , which is only readable by root. That problem is _not_ the subject of this bug report - I don't know where the directory came from (although since it appeared on both development and production machines, there probably is a way to provoke it), and it might well be outside LibreOffice. What I'd expect from LibreOffice is to report (say on standard error - it already uses it for successful conversions) that it cannot read a directory it needs.
Thank you for reporting the bug. it seems you're using an old version of LibreOffice. Could you please try to reproduce it with the latest version of LibreOffice from https://www.libreoffice.org/download/libreoffice-fresh/ ? I have set the bug's status to 'NEEDINFO'. Please change it back to 'UNCONFIRMED' if the bug is still present in the latest version.
I'd say it's not reproducible in LibreOffice 6.2.2: in the first place, LibreOffice no longer seems to use /var/spool/libreoffice/uno_packages/cache/uno_packages/ , and restricting access rights to /opt/libreoffice6.2/share/uno_packages/cache/uno_packages/ instead results in export HOME=/home/testuser/X-C-201941787 && libreoffice6.2 --headless --convert-to pdf --outdir /home/testuser/X-C-201941787 /home/testuser/X-C-201941787/filledTemplate.odt printing LibreOffice 6.2 - Fatal Error: The application cannot be started. Extension Manager: exception in synchronize - not excessively informative, but undeniably an error message.
Ok, let's close