Hi @RachelK ,
Where did you open the PDF?
What the version number of Office did you use?
Did this problem appear in existed PDF file or a new created PDF file?
I suggest you try to install the latest update for Office and test again.
Please be a bit more precise to explain your problem or you can upload a screenshot so that I can get more accurate solutions to this problem. I’m glad to help and follow up your reply.
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