If you already have saved PDFs that you want to import into your EndNote library, follow these steps:
1. Move all of the PDFs into the same folder on your computer
2. In EndNote, open your Preferences menu and click on PDF Handling

3. In the PDF Auto Import Folder section, click Select Folder and choose the folder in which you just placed all of your PDFs.
4. Click the box next to Enable automatic importing.
4. Click Apply. Click OK.
EndNote will now bring in all of the PDFs you currently have in the selected folder, as well as any new PDFs you add in the future--automatically.
*Not all PDFs will have information that EndNote can read to generate a citation, so make sure you review and edit the publication information in EndNote as necessary for any PDFs that you import.