Upstream speaking here! * Emilio Pozuelo Monfort <po...@debian.org>, 2018-04-13, 19:39:
AssertionError: 'PDF syntax warning: EOF while reading header (continuing anyway)\nPDF syntax wa [truncated]... != '' - PDF syntax warning: EOF while reading header (continuing anyway) - PDF syntax warning: EOF while reading header (continuing anyway) - PDF syntax warning: EOF while reading header (continuing anyway)
Ideally, this should be fixed in Poppler by cherry-picking this patch: https://cgit.freedesktop.org/poppler/poppler/patch/?id=e491e935ea355d48519cf0a14e4b060655850675 -- Jakub Wilk