Smarter Document Management links between three WordPress sites sought

There is nothing in WP that specifically deals with cross–site communication. Every WP site is an island by design. However there are plenty helpful bits and pieces to rig suitable solutions for many use cases. As far as I follow your case I would imagine something like this: Central sites hosts documents (in whatever way … Read more

Private pdf files

Your approach does not provide security. I could hand-craft a cookie named “wordpress_logged_in” (containing any arbitrary value) and have access to your PDF files. You may want to rethink your solution to put a PHP script in between the files and the users. e.g. User Clicks download button PHP Script handles fetching document If authenticated … Read more