I was involved in a product where users had to upload pdf files in the frontend, and this pdf file would be processed in the backend using PyPDF. The notable parts are it allows to extract all file details, extract texts, encrypt pdf, and split pages as well. The ease of extracting is tremendous. Everything is in documentation, so it's very easy to implement.

Provides multiple functions like extracting data from a pdf file. python pdf can also be used to encrypt a pdf file, merge separate pdf files or split one pdf files into separate files.

I like python pdf because the software is bar none when it comes to generating pdf's that are non editable for certain financial analytics workflows.