You can add files to Mendeley by:
Export references directly from other Elsevier products such as Science Direct or Scopus to Mendeley by:
You can edit PDFs that have been added to your Mendeley Library. You can do this by double clicking to open the file in a seperate tab within Mendeley Desktop. You now have the option to:
Install the Mendeley Web Importer -- Install the Web Importer into your favorite web browser to import references and documents academic databases.
Save articles to your Mendeley Library as you browse.
Mendeley Institutional Edition users can now try out "Mendeley Suggest" which suggests new papers based on your library.
Try it today by clicking "Mendeley Suggest" which is located on the left panel below "Literature Search".