Please try to sign out and relaunch the application.
Then sign in and try to export PDF.
Check if it works.
Could you please let us know if you are experiencing the issue with these two files only.
Have you tried to export other PDFs?
What happens when you try to export these files?
Do you get nay error message?
Did you try to export PDF online here: https://cloud.acrobat.com/exportpdf?
I've already tried this and didn't work
Yes, it's giving me an error message that I don't have internet connection which I do
Please let us know if you get this error message when you try to export PDF in Adobe Acrobat Reader DC.
Did you try to sign out from the application and relaunch it?
Did you check if you can export PDF online here https://cloud.acrobat.com/exportpdf or not?
If you get any error message when you try to export PDF online, please share it with us.
Let us know if you are referring to something else.