You set the password. You know it. You're tired of typing it every time you open the file. You want to remove the lock entirely.
What's actually going wrong
Entering a password decrypts the file per-session but doesn't remove the encryption. The next open still asks. Removing the lock means saving a copy without the encryption layer.
Not every viewer exposes lock removal. The operation requires having the password (which you do) and a tool that handles encrypted PDFs (which Flint does).
The quick fix
Upload to Flint's unlock PDF. Enter the password. Flint produces a decrypted copy. Download. The new file opens without any password prompt — forever.
Original file stays encrypted. You can keep both or delete the original after confirming the new copy works.
If that didn't work
If you have a user password but the file is also owner-locked (restrictions on editing/copying), removing the user password may not remove all restrictions. You may need both passwords to fully unlock.
For documents you need to stay protected, don't unlock — manage the password instead. Store in a password manager and use autofill to avoid retyping.
Prevent it next time
Only password-protect documents that genuinely need protection. For files you'll access frequently, leave them unencrypted. Encrypt only at the moment of distribution.
FAQ
Is removing the password legal?
On files you own or have legitimate authority over, yes. Flint won't help bypass passwords you don't have — but on your own files, unlocking is a routine operation.
Will unlocking change the document content?
No. Only the encryption wrapper is removed. Visible content is unchanged.
Can I re-lock the file later?
Yes. Use Flint's password-protect-pdf tool to apply a new password to the unlocked copy.
Why won't Acrobat let me remove the password?
Acrobat sometimes requires owner password even when you have user password. Or your version doesn't support unlock. Flint handles user-password unlocks reliably.
Have the password? Unlock in Flint and stop being prompted.