Hi Emmanuel, what is the state of affairs in respect to PyPDF4 (or PyPDF3)? I'm not sure, which one is "better" at the moment.
Last commit PyPDF3: 2022-02-03 (of 484) Last commit PyPDF4: 2020-06-22 (of 585) Last release PyPDF3: 2022-02-03 (version 1.0.6) Last release PyPDF4: 2018-08-07 (version 1.27.0) Cheers