I love WordPerfect - have been an avid user since version 4.2, now have 2021 but I have to go to delete a PDF file before I can save an edited version. WP used to offer the option, "Do you want to replace the existing file?" This was much more convenient.
Do you use the newest version of WordPerfect (21.0.0.194) with all patches?
Mine asks before overwriting a PDF file.