If I file is not in a folder its invisible – Mendeley (PDF Reader) Review

This is a perfect app I have a huge database of references that I can now keep organized and can search and reach what I want in seconds However I still face a problem when I forget to tag a file since the unsorted folder only shows in the desktop app which is not available to be at all times
Review by Shaikha Almuhareb on Mendeley (PDF Reader).