Hi John,
I am playing with org-ref, the melpa version.
Everything works fine except, one thing. When I drag a pdf to an empty bibtex file it doesn’t extract the doi ( no doi found in the file:///). I tried it pdf you used in your video (Examples of Effective Data Sharing in Scientific Publishing), but I got the same error. Dragging the url to the bibtex file also doesn’t works for me.
cheers,
M
PS by the way, your video was excellent :)