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Password-protect a PDF

Encrypt your file with a password before sending it, so only people you share it with can open it. Runs in your browser by default.

Mostly on your device

Protection runs in your browser by default. Our server is used only if you choose server processing: the file and password are sent over an encrypted connection, processed, and deleted right after processing.

  1. 1Choose the file
  2. 2Options
  3. 3Result

or drop it here

PDF

Choose a file first

How to use it

  1. 1

    Choose your PDF

    Tap “Select PDF file” or drag it into the box, from your phone or computer.

  2. 2

    Set a password

    Choose a long password that's hard to guess and type it twice to confirm.

  3. 3

    Protect

    Tap “Protect PDF”. The file is encrypted in your browser, unless you choose server processing.

  4. 4

    Download and send

    Download the protected file, and share the password with the recipient through a different channel than the file.

What you get

  • Real encryption

    The file is encrypted with AES, the standard used by modern PDF software, so its contents can't be read without the password.

  • In your browser by default

    Encryption runs on your device, so neither the file nor the password reaches our servers unless you choose that.

  • Opens anywhere

    The protected file opens with its password in common PDF readers on phones and computers.

  • We don't keep your password

    We don't store the password and can't recover it for you, so keep it somewhere safe.

Frequently asked questions

Is it impossible to open the file without the password?

The encryption is strong, but protection is only as good as the password. Short or common ones like 123456 or a birth date can be guessed, so choose a long password that mixes letters and numbers.

I forgot the password. Can you help?

No. We don't keep passwords, can't recover them and don't break protection. Keep an unprotected copy somewhere safe on your device.

Is my file uploaded?

Not by default: encryption runs in your browser. If you choose server processing, the file and password are sent over an encrypted connection, processed, and deleted right after processing.

How do I share the password safely?

Use a different channel from the file. For example, send the file by email and the password by WhatsApp or a phone call.

Do government portals accept password-protected PDFs?

Usually not: many portals reject encrypted files because they can't read them. Use protection for files you send to people, not for portal uploads.

Is it free, and does it work on phones?

Yes. It's free with no account, and it works in Chrome and Safari on phones.

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