An error may appear that says There was an error opening this document.
There is a simple fix for this error.
Just go through this.
You should be good to go!
Adobe Reader should now open files just fine.
Acrobat Reader: Fix “There was an error opening this document. Access denied.”
Solve the "There was an error opening this document. Access denied." error message when attempting to open a PDF file from an email client.
