Import a PDF and EndNote will create a reference for it, and attach the PDF to the reference:
PDF auto-import. Set up a folder on your desktop. Save PDFs into that folder and EndNote can import them automatically:
You can import search results from most databases into EndNote. This is made possible by import filters that come with the EndNote program.
Every database works a little differently, but the EndNote import filter for the particular database includes information on how to import the results. To see these filters, in EndNote select Edit/Import Filters/Open Filter Manager. Select the filter that matches the name of your database and you can see the download instructions within the filter information.
Watch the video below for an example of how this process works.
On the EndNote menu, click Tools / Online Search ...
See this procedure in the pdf below.
The most basic way to enter a reference is by typing it in.