Just had a great review from Ninja Team which is a custom development agency, they gave a rundown of the top WordPress Document Manager plugins.  Quoted from the article

From the Smarty Pants team, we get this very versatile plugin. According to the team, this plugin has been used in many industries including healthcare, education, and banking. 

The SP Project and Document Manager is a handy little tool with a clean look. Interface-wise, it’s nothing extraordinary but it is clear and easily navigated. The plugin lets users organize everything through the use of categories and folders. It even lets users upload an unlimited number of files.

That just goes to show how this plugin focuses on functionality. To help users, the plugin readily comes with SSL support. The plugin also allows the embedding of YouTube videos as files. For security, the plugin will let administrators set restrictions for file uploads and downloads. Additionally, the plugin lets administrators restrict users to a role. 

The best part is that it also allows for remote file sharing. You can do this with your clients and other organizations. This lends itself to the plugin’s collaborative function. You can also use this function to access your files remotely. And you get all this on the community version. The plugin also has a premium version that requires add-ons but adds a host of new features. 

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