PDF tool · Private

Protect a PDF with a Password

Encrypt your PDF with a password so only people who know it can open it. Private and local.

Premium feature

or drop the file here

Processed on your device
Never uploaded to a server
No watermarks

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How to use Protect PDF in 3 steps

Open the PDF
Type a password
Encrypt and save

Protect PDF: what it is and when to use it

Protect confidential documents with a password.

Protecting a PDF with a password encrypts the document so only someone who knows the password can open it. It is the basic way to share sensitive information by email or messaging.

You choose the password in Rayo PDF GO and get an encrypted copy, created on your device without passing through servers.

Common uses

Send contracts, payslips, or medical documents.
Keep encrypted backup copies.
Share financial information.
Prevent casual access on a shared computer.

Tips for better results

Use a long password that is different from your others.
Send the password through a different channel than the file.
Keep it: it cannot be recovered.

Why Rayo PDF GO

Truly private

Your files are processed on your device and never uploaded to a server.

Fast

No queues, no waiting for a server.

On every device

iPhone, Android, Mac, Windows and browser.

Free to start

Essential tools are free; Premium unlocks the advanced ones.

Frequently asked questions

What encryption does it use?

Standard PDF password encryption.

What if I forget it?

It cannot be recovered; keep it in a safe place.

Is it free?

It is a Premium feature.

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