Hi @anamota_1997,

I see that you are visiting as a new member to the AutoCAD for Mac forum. Welcome to the Autodesk Community!

 Are you having this issue in all your files or just unique/specific ones?

Please type ABOUT in AutoCAD and let me know your AutoCAD version . Mine is AutoCAD 2018.2.

Please also, tell me how you are setting up your PDF. (Step by Step process).

Please select the Accept as Solution button if my post solves your issue or answers your question.