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    Protect PDF

    Protect a PDF with a password

    Protect a PDF

    Add a password so only people with it can open your PDF. It's locked on your device — the password never reaches our servers.

    How to password-protect a PDF
    1. 1Choose your PDFPick the PDF you want to lock.
    2. 2Set a passwordType the password people will need to open it. You can also block printing and copying.
    3. 3Download the locked PDFYour protected copy downloads. Share the password separately from the file.
    When to protect a PDF
    • Payslips & salariesSend payslips that only the employee can open.
    • Bank statementsKeep statements and financial records private when you share them.
    • IDs & certificatesScans of IDs, passports and certificates.
    • Client documentsProposals, contracts and reports meant for one client.
    • Medical recordsResults and records that should stay between you and the reader.
    • Exam papersPapers you send ahead and unlock on the day.
    Private & free
    Locked on your deviceThe PDF is encrypted in your browser. Neither the file nor the password is sent to our servers.
    Free to useProtecting a PDF is free. You only sign in to Ifiok when you download the locked copy.
    Frequently asked questions
    How strong is the protection?It uses AES-256, the standard most PDF readers support, so Adobe Reader, Chrome and phone viewers will ask for the password.
    What if I forget the password?A protected PDF cannot be recovered without it, and we never see it, so keep it somewhere safe.
    Can I stop people printing it?Yes. Tick Block printing or Block copying text before you protect the file.
    How do I remove the password later?Use Unlock PDF and type the password once.