veryfreePDFAll toolsTools

Protect PDF

Protect a PDF with a password: strong AES encryption, applied 100% in your browser — your file and your password never leave your device.

Drop your file here or click to choose
No upload No sign-up Free

Done!

Your download has started.

Process another file
How to password protect a PDFReal encryption, not a setting a reader can ignore — and what a password does not protect you from.Read the guide

How it works

Add your file

Add a PDF, choose a password, and download the encrypted file. Everything happens in your browser.

Choose your options

Pick the settings you need — it's instant and private.

Download

A short ad, then your file is ready. Free, forever.

Your files never leave your browser

Unlike most online tools, veryfreePDF processes everything locally on your device. Nothing is uploaded, stored or read by anyone — your documents stay private.

Related tools

Unlock PDFRemove the password from a PDF so you can use it freely.PDF to WordTurn your PDF into an editable Word (.PDF to MarkdownConvert your PDF files into clean Markdown.Word to PDFConvert Word (.

Frequently asked questions

Does my password leave my device?

Never. Encryption is performed entirely in your browser, so neither the file nor the password is transmitted anywhere.

What happens if I lose the password?

The document becomes unreadable, for you as well. There is no recovery mechanism, so store the password somewhere safe before sending the file.

Is it really free?

Yes. Protect PDF is 100% free with no account, no watermark and no file limit. A short ad supports the service when you download.

Are my files uploaded to a server?

No. Everything runs locally in your browser — your documents never leave your device, which keeps them private.