
Hello, I’m Virginia a fellow Windows user. I’m sorry to hear that you’re experiencing problems.
It seems to be a returning bug as the same was reported here in 2020:
https://techcommunity.microsoft.com/discussions/edgeinsiderdiscussions/pdf-text-deformed/1426504
I’d also try turning off graphics acceleration:
Click on the three dots>Settings>System & performance>Turn off use graphics acceleration. Then click restart.
If that doesn’t work Then I would Ensure Edge is running the latest version, if you are then please report this as a bug - Windows key + F key.
I would suggest using a free PDF editor until the problem has been fixed.