If you no longer need to password protect a PDF you created, removing the password can be a bit of a pain. Here are some simple ways to get rid of it.

Learn how to reset file, folder & user permissions to default in Windows using secedit & icacls, subinacl commands, Reset security & permission issues to default.

Malware or network issues can sometimes change file permissions or disown you. If you're getting a "you don't have permissions" error, here's how to fix it.