I have a view in Drupal 7 that lists PDF files. I want to keep track of the users that open that file; so I want that, if they are not logged in when they click, they are sent to the login/sign up page. I have already accomplished this using two views with different permissions, but the problem is that, after they sign up, they are redirected to the user profile page, as opposed to the PDF file.
How can I accomplish this?