Hello,
[Bug 36597] is about switching PDF thumbnails from jpeg to PNG. The
change to PdfHandler extension is really straightforward:
https://gerrit.wikimedia.org/r/#/c/6802/
It feels like PNG is more suitable, but would like some other people
input before merging this change in.
[Bug 36597]
https://bugzilla.wikimedia.org/show_bug.cgi?id=36597
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Antoine "hashar" Musso