* Attempt to handle decompression error on some broken PDF files
from times to times we go through files where no text is detected, while readers
like evince reads the pdf nicely. After digging it occured this is because the
PDF includes some badly compressed data. This may be fixed by uncompressing byte
per byte and ignoring the error on the last check bytes (arbitrarily found to be
the 3 last).
This has been largely inspired by https://github.com/mstamy2/PyPDF2/issues/422
and the test file has been taken from there, so credits to @zegrep.
* Attempt to handle decompression error on some broken PDF files
from times to times we go through files where no text is detected, while readers
like evince reads the pdf nicely. After digging it occured this is because the
PDF includes some badly compressed data. This may be fixed by uncompressing byte
per byte and ignoring the error on the last check bytes (arbitrarily found to be
the 3 last).
This has been largely inspired by mstamy2/PyPDF2#422
and the test file has been taken from there, so credits to @zegrep.
* Use a warnings instead of raising exception
where zlib error is detected before the CRC checksum.
* Add line to CHANGELOG.md
* Only try decompressing if not in strict mode
* Change error into warning because warning.warn needs a subclass of Warning
Co-authored-by: Sylvain Thénault <sylvain.thenault@lowatt.fr>
Co-authored-by: Pieter Marsman <pietermarsman@gmail.com>
Sylvain Thénault