Why is my Mac not letting me save PDF?
If you can't save a PDF file on a Mac, then it can be related to an old or outdated version of the application or its firmware. At first, you need to make sure that the Adobe Acrobat DC Pro application is up to date on your system.
Why can't I export my Word doc as a PDF?
When you get this error when trying to save Word Doc as PDF, you will need to use Save As from the drop-down option before you click Save. Make sure that you choose the PDF option in the "Save As" window.