How can I allow the site members to rotate or crop a photo? These two are very basic features available in other media galleries. Thanks
Your site members can edit the media uploaded by them and can rotate and crop the photo. rtMedia uses default WordPress image editor to edit media. You just need to click on “Edit” button in single media lightbox or single media page.
You can check this doc: http://docs.rtcamp.com/rtmedia/features/edit-media/ for more information.
Also just to inform you, you may have assigned role as a subscriber for all the new registered users and hence users not able to rotate or crop their uploaded photos. WordPress do not load image editor to users with Subscriber role.