WPD w3all WordPress plugin for Dropbox, to display and manage shared Dropbox user’s files into WordPress user’s pages/posts.
Easy and light.
Display into WordPress, images from Dropbox, by coping the link of it on WordPress Dropbox user’s page, and by clicking on WP button
Add Media -> Insert from Url paste the URL.
Or files just adding pure URL:
If you like to test the user files manager, which is feature available for each user on his own WordPress Dropbox page, please register into this site, and send a request by using the contact page.