Dear Eddiethe,
Good day! Thank you for posting to Microsoft Community. We are happy to help you.
From your description, it seems that the issue happesn in any PowerPoint files in your environment. If yes, for some test purpose, I suggest you try some online converter tool to see if the result is like the following.
PowerPoint for the web

PDF


If the PDF file can be converted successfully, I suggest you currently use it as a workaround.
Meanwhile, regarding "I have a user who when after he has saved/exported his PowerPoint as a PDF the PDF will be cropped and some of the bottom and right side will be cut into.", I'd like you to upload some related screenshots for our confirmation.
If it is convenient, please upload a full screenshot of the Account page in the PowerPoint application you are using for our reference. You can access the page via clicking on File>Account.
Note: Remove any private information before uploading the screenshots.
Sincerely,
Cliff | Microsoft Community Moderator
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