Apparently there are still researchers out there (no, I won’t name you) who have not heard of Zotero and Zotfile. Zotfile takes Zotero to another level by managing PDF files, including the ability to extract highlights and comments from PDF files. Try them.
Sociologist. Quantitativist. University of Neuchâtel.
Didier Ruedin 
One Reply to “Zotero and Zotfile”