Changing default paper size on ArchiLinux
After many searches on the web, I've finally found why LibreOffice Writer always created a new document in Letter format.
Everybody on forums explains that you have to change your locale in LibreOffice options, but it was not effective.
There is an Operating System parameter for that !
Open a terminal and launch paperconf and locale LC_PAPER
$ paperconf Letter
$ locale LC_PAPER 297 210 UTF-8
If you have Letter, as me, change the content of /etc/papersize to put "a4" in it:
$ cat /etc/papersize # Simply write the paper name. See papersize(5) for possible values a4
List of papersize from man 5 papersize:
PAPER NAMES
The following names are commonly understood by programs: a3, a4, a5, b5, letter, legal, executive, note and 11x17.
Additional paper names that one may encounter are: a0, a1, a2, a6, a7, a8, a9, a10, b0, b1, b2, b3, b4, tabloid, statement, note, halfletter, halfexecutive, folio, quarto, ledger, archA, archB, archC, archD, archE, flsa, flse, csheet, dsheet, esheet and 10x14.