Records can be added to your library by importing PDF files that have a Digital Object Identifier (DOI) in the file metadata, or in the first two pages of the PDF. EndNote scans the PDF file first two pages of the file, conducts a search for the DOI in the PubMed and CrossRef databases, adds the reference data to a new library record and attaches the PDF file to that record.
The PDF file must have a DOI and you need to have access to the Internet.
If EndNote is unable to locate a matching reference, the PDF file will be added to a new record, with the filename included in the Title field. The filename will be enclosed in angle brackets, e.g. <filename.pdf>. In which case you can manually edit the record, to include the correct details.
If you edit the record and add key data such as the Authors name, Title, Year and DOI, you may then be able to obtain a complete record, using Find reference updates option.
PDF files downloaded from online databases will often have odd file names, e.g. selected.pdf, 12345678.pdf. Setting the PDF Handing preferences to automatically rename the file to Author + Year, ensures that the file name is not too long, and that it’s easy to identify the document.
EndNote™ Preferences can be set from:
EndNote will attempt to attach PDF files to matching records that are already in your library, rather than create duplicate records.
Check these screenshots
You can also set up a folder on your computer from which PDF files can be automatically imported into your library.
PDF auto import folder (2min 22sec)