For this to be a good productive feature

Raindrop should first add notes option like blank pages and edit option for web clip(articles) otherwise it would be a good to annotate PDFs on raindrop because it is not a note taking app.

One of the most important features. Not just annotate, but grab annotated pdfs (notes, highlights) and use these highlights as raindrop highlights.

This is a great feature to have, can be a Pro only feature.

Another must have is that it should be able to bookmark local url (like D:/folder/book.pdf), currently bookmarking local url given error invalid link.

Screenshots of reference design (diigo.com)

I'd also love this feature

It would be good to know whether this is intended or not. For me, without it, it will not make sense for me long-term as much as I like raindrop. This app is smooth and has the potential to displace at least Diigo. I want a place where I can work on content in a team. With notes, all is prepared here aside from a critical source of information whenever content is locked in PDFs.

in 2023, how is this NOT a feature? Being in school, I use tons of PDFs for references and need to be able to annotate them. This is the only thing keeping Raindrop.io from being the perfect bookmark/reference app.

This would be perfect! I'd even subscribe to have this function

This would be incredible. I do so much research where only PDFs are available. This would make raindrop an all in one!

This would be a game changer!