There are multiple ways to add references and PDFs to Mendeley. Most often you will use the Mendeley toolbar button (web importer). You may also create an RIS File and then import the RIS file into Mendeley Desktop. Your computer cannot open the RIS file, it’s only readable by citation management software – do not try to open it.
When adding a reference, Mendeley will try to import the PDF as well, but this does not always work. You may need to save the PDF to your computer, then upload the PDF to the reference in Mendeley.
You can also run a search within Mendeley to add references to your library. On the Feed tab in Mendeley online, click on Search. You can search for papers, people, or groups. Papers are references people have added to Mendeley and people have allowed to be public.
NOTE: You are saving the references to your library, but not the PDF.
Sometimes you may have to enter a reference manually. This may be because the PDF you uploaded did not have metadata or a DOI or you cannot find the item online.
Click the Add Button and then Add entry manually. Be sure to select the appropriate type of item from the TYPE dropdown menu as this will change the information you need to fill out.