Split a large PDF into small pdfs

As a user, I want to split a PDF into multiple documents so that I can better work with those files. It will allow me to better contextualize each file and also work with them using AI.

Currently, I either use Adobe or iLovePDF that allows to either split or group pdfs (yet I’m a bit concerned about the security even thought it’s in Italy).

I’d like to split it between specific pages. That’d be extremely useful.