Do you have a PDF and would like to extract all of the references and place them in an EndNote library? If so, HubMed may be useful to you! The HubMed Citation Finder allows you to copy and paste references from PDF files and convert them into PubMed search results. The results can then be imported into Endnote.
** Please note that this may not work on scanned PDF/Word files and it is recommended that you double check HubMed's citation report to ensure accuracy.