I use Obsidian to catalogue and read research papers stored as .pdf files, which I imagine is a fairly popular use-case. One thing that makes this pretty difficult is that the scroll position within the pdf, which could be hundreds of pages long, is lost every time I close the tab. After some googling, I don’t see a way to solve this. There’s a plugin called Remember Cursor Position, discussed here, which seems to be a solution for notes, but doesn’t work for pdf files.
It seems like something that might be necessary to do in the app vs as an extension, although I might be wrong about that. The app could use a dictionary of file path to percent read, and resolve conflicts by taking the most recent read state. This would add a negligeable overhead to the app storage, and really improve the experience.
Remember the scroll position or write it down in another note.
Doing the same for notes, as discussed in the linked thread, would also be nice.