Danny Milosavljevic <dan...@scratchpost.org> skribis: > Hi Ludo, > > On Fri, 07 Jul 2017 14:00:09 +0200 > l...@gnu.org (Ludovic Courtès) wrote: > >> Danny Milosavljevic <dan...@scratchpost.org> skribis: >> >> > Also, newer PDF files have an RDF header specifying some extra information >> > in an XML-like format. For example there's an instance UUID (PDF/A >> > specifies >> > that it's recommended to set this to an empty string), and a document UUID. >> > The latter again is time-based. >> >> If it’s time-based, then the solution may be to honor SOURCE_DATE_EPOCH. > > Upstream says definitely not. The UUIDs are supposed to be unique and they > don't want anyone writing fixed UUIDs into documents (except for "" for the > instance ID which they themselves do). > > I think there could be some enterprise search engine which associates a > document with other resources using the document UUID - and if everyone went > and reused UUIDs it would be very confused. > > That's why I left it off.
OK, makes sense. Maybe we can still have it disabled (or enabled) by environment variable instead of having it removed wholesale? Ludo’.