annotating long pdfs

[AkumaShisen]

Hello
Im new to obsidian and something that would be handy for me (and other study friends of mine) would be to have a smooth way of bringing a pdf into obsidian and being able to seemlessly read through it while also from the getgo start annotating while still being able to use the links pdfs have to jump around in sections. Together with the linking around of obsidian and inside excalidraw drawing i think it would make the entire process way handier than using extern pdf annotating programs.
When i say long its like 200-700 page pdfs.

Ive played around with just loading a pdf into excalidraw but i assume bc of the size there is a need of automatically and seemlessly split up the pdf while still conserving as well as possible the experience of freely being able to spring around in the pdf. Else there will be lag at some point bc a single file would get too large?

I assume im not the only one running into this and hope that maybe there are some scripts already existing that aim to tackle this.

Best regards