Bug#1111008: winff: pdf files do not build reproducibly

[Peter B]

Package: winff
Severity: normal
X-Debbugs-Cc: pe...@pblackman.plus.com

pdf files built with soffice do not build reproducibly.

See;
https://bugs.debian.org/1065448
https://bugs.documentfoundation.org/show_bug.cgi?id=160033