deeplow
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6006beeb03
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Fix OCR on Qubes: PyMuPDF required TESSDATA_PREFIX
PyMuPDF versions lower than 1.22.5 pass the tesseract data path as
an argument to `pixmap.pdfocr_tobytes()` [1], but lower versions require
setting instead the TESSDATA_PREFIX environment variable [2].
Because on Qubes the pixels to pdf conversion happens on the host and
Qubes has a lower PyMuPDF package version, we need to pass instead via
environment variable.
NOTE: the TESSDATA_PREFIX env. variable was set in dangerzone-cli
instead of closer to the calling method in `doc_to_pixels.py` since
PyMuPDF reads this variable as soon as the fitz module is imported
[3][4].
[1]: https://pymupdf.readthedocs.io/en/latest/pixmap.html#Pixmap.pdfocr_tobytes
[2]: https://pymupdf.readthedocs.io/en/latest/installation.html#enabling-integrated-ocr-support
[3]: https://github.com/pymupdf/PyMuPDF/discussions/2439
[4]: https://github.com/pymupdf/PyMuPDF/blob/5d6a7db/src/__init__.py#L159
Fixes #682
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2024-02-07 13:13:10 +00:00 |
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