unoconv is a commandline utility which can convert from
any document format that OpenOffice can import to any document format
it can export. It uses OpenOffice's UNO bindings for non-interactive
conversion of documents.
Easy to install using your package manager.
No need for scripts/run-oo.
run-oo requires setting up a home directory for the apache user, etc.,
so bypassing it should be a bg plus.