Hi Sebastien,

maybe the idea is that you redefine the \maketitle command to fit your
needs in a .tex file (maybe new_title.tex) and then
#+LATEX_HEADER: \input{new_title}
For this, you will need to go through the manual of the class you use for
your documents.

This is my way of solving this challenge when I publish materials for my
students.

Best, /PA
-- 
Fragen sind nicht da, um beantwortet zu werden,
Fragen sind da um gestellt zu werden
Georg Kreisler

Headaches with a Juju log:
unit-basic-16: 09:17:36 WARNING juju.worker.uniter.operation we should run
a leader-deposed hook here, but we can't yet