If you are unable to Edit, Copy, or Paste to or from a PDF see below:
The PDF reports are locked down when a user such as a Teacher, Student, or Parent opens them. This is to add a layer of security for things like Report Cards or Transcripts and other reports that users may decide to manually make edits to the Report itself. The only Users that have the ability to Edit, Copy and Paste are Manager Roles, they can Edit, Copy and Paste from the report directly. The reason for this is to restrict access users have, so it is only limited to the Manager Roles.