Today Creo View uses the external Adobe Acrobat or other PDF viewer software.
We have had countless issues with this interface.
IT updates Acrobat, and sometimes it fails, sometimes it doesn't.
Someone has Full Acrobat and Reader and it causes issues.
Someone tries to install Creo View with short term Elevated Privileges, and it only installs Creo View, not the Adobe Acrobat Adapter. So when they eventually open a PDF, they can't install the adapter.
I get 1-5 emails a week on Creo View not working correctly, and most of the time they are having issues with viewing PDFs. Reinstall is the usual answer, but that's not right, and even more difficult with restrictions on Elevated Privileges.
If a PDF viewer were embedded with the software I think it might work better than an adapter. That way it doesn't have to depend on another program being installed the right way.
No matter what, the software just HAS to work better and be more seemless to the end user.
The only other alternative I can think of is not use Creo View for PDF viewables at all, and keep it only for models.