It will save your time even more if you know how to create a symbolic link to route your PDF downloads into the watch folder. Every document that are subsequently added into the folder will also be scanned automatically. After selecting a watch folder, Mendeley Desktop will scan it to find any PDF file. You can also set up a watch folder for Mendeley Desktop. Every PDF file in the folder will be processed the same way and their details are also added into the library. Dragging and dropping a folder works too. If it is a PDF file, the software will automatically extract its details and then use them to create a new entry in the library. Adding references is as easy as dragging and dropping a file onto Mendeley Desktop.