What is the best method of importing PDF files into a notebook?

I have a library of documents that I annotate and would like to pull figures and excerpts from without having to explicitly export images.

I would like to import a local PDF into my JL notebook and select a given page and zoom level. If need be I can serve this from another localhost server.

It seems like at the moment this might be prevented by sandboxing? I found this open issue on the github page: Hyperlink in markdown cell to pdf document stopped working #3652 that looks related.

This stackoverflow discussion seems to have a couple of methods for displaying PDF documents in JL, and suggest that as long as these files are held in a subdirectory of the JL notebook it should work.