PDF Password Checker
Tell if a PDF is locked and try passwords.
Check if a PDF is password protected instantly. Free PDF encryption checker and password tryer.
Calculator Inputs
About PDF Locked?
Tell if a PDF is locked and try passwords.
Attempts to open with PDF.js. If no password is needed it reports open; otherwise it flags the file as encrypted.
Where it is used
Preflight downloads, unlocking workflows, support triage.
How to use the PDF Locked?
- PDF File — select a file (application/pdf,.pdf) — File inspected locally..
- Password (try to open) — enter the value (e.g. Optional).
- Calculate — press the Calculate button to see the result instantly above.
Formula
PDF.js getDocument with optional password; catch auth errors.
Examples
Unlocked
Result: NOT password protected ✓
Frequently Asked Questions
- This is not cracking?
- Correct — it only verifies a password you already have; it does not recover unknown passwords.