I think many of us use some kind of reference manager for this sort of thing. (I use Bibdesk, which automatically files pdfs according to a user-defined set of criteria. And then I link the pdf in Obsidian.)
There is a markdown web clipper (you can search the forum for it) that downloads things from the web in markdown β but itβs not for pdfs AFAIK.
Hmm, I do use Bibdesk as well, but for quick notes the process of downloading a pdf, linking it, etc always seemed to be too much.
However your post inspired me to look into automation options, thanks!