Add new file formats supported by PyMuPDF (epub, svg, bmp, pnm, bpm, ppm)

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Add new file formats supported by PyMuPDF (epub, svg, bmp, pnm, bpm, ppm) #697

Closed deeplow closed 8 months ago

deeplow commented 8 months ago

(two commits on top of #627) just to get the Qubes support working.

Partially fixes for #660. Missing some files due to limitations 1:

PSD - only available from PyMuPDF>=1.23.0 (qubes-fedora is lower)
TXT - only available from PyMuPDF>=1.23.7 (qubes-fedora is lower)
JXR - PyMuPDF was refusing to due to missing codec 1
JPX - Generated test file was rejected by PyMuPDF 2
FB2 - Most often cannot be detected by mime type alone 3
CBZ - (idem)
XPS - (idem)
MOBI - (idem)
PAM - General version of other file format already included, so I decided not to include this extension 0

New test files were generated locally:

mobi/epub - generated with calibre's convert-ebook from another sample file
svg - generated with inkscape from a mix of a default template (hexagons) and a logo's PNG file
bmp, pnm, bpm, ppm - generated with ImageMagick's 'convert' from tests/test_docs/sample-png.png

deeplow commented 8 months ago

I had originally also added support for txt, mobi and psd but I later found those had issues in our various system configurations.

While psd and txt had to do with older PyMuPDF versions on Fedora, mobi was working on Qubes but failing on the container. Basically the mimetype library on Qubes correctly identifies the file format but on container we have another one and it says application/octet-stream :/