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Protect PDF

Encrypt your PDF with a password — real AES-256.

or drop a PDF here

PDF · up to 15 MB free

🛡 Private to you · files are deleted after 60 minutes

To password-protect a PDF, upload it, type the password and download the encrypted copy. PDFVelvet uses real AES-256 encryption — the standard banks use — so the file is unreadable without the password in any PDF viewer.

How it works

  1. 1

    Add your PDF

    Drop the file and choose a strong password.

  2. 2

    It is encrypted

    The document is sealed with AES-256 — the standard banks and governments use.

  3. 3

    Download and share

    Only people who know the password can open the file, anywhere, in any viewer.

Genuine encryption

AES-256 protects the file itself — not just a lock screen — so the content is unreadable without the password.

Works in every viewer

Standard PDF encryption means Adobe Reader, browsers and phones all prompt for the password correctly.

Safe to email

Send sensitive contracts and records over email knowing interception doesn't expose the content.

Frequently asked questions

How strong is the protection?

Files are encrypted with AES-256, the current industry standard; a strong password makes brute force impractical.

What if I forget the password?

There is no backdoor — that's the point of real encryption. Store the password somewhere safe.

Do you keep my password?

No. The password is used to encrypt the file and never stored; the file itself is deleted after 60 minutes.

Can recipients open it on a phone?

Yes — any standard PDF viewer prompts for the password and opens it normally.

Is online PDF password protection safe?

The file travels over an encrypted connection, is encrypted with AES-256, and both your upload and the password are deleted from the server — the password is erased the moment the task finishes.

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