Can I unlock a PDF without knowing the password?

No. You must know the password. This tool removes protection legitimately, it does not crack passwords.

What about owner-only restrictions (no print, no copy)?

If the PDF only has owner restrictions and no open password, they can be removed in one click.

No. The content is identical; only the encryption layer is stripped.

No. The unlocked file is generated on demand and removed afterward.

Remove password protection from your PDF — enter the current password to unlock it