Verified no-login tool
Drop pdf file here or
Your files are secure
Set a password, encrypt the file, share it safely. Everything runs in your browser — the unprotected file never leaves your device.
Select your PDF — drag it into the tool or click Select PDF to browse.
Type the password you want to require. Pick something strong — a long phrase beats a short word.
Apply the encryption. The file is locked right in your browser using standard PDF password protection.
Download the protected PDF. Anyone opening it now needs the password to read a single page.
Built for speed, privacy and reliability — on any device.
The file gets standard PDF password protection — without the password, the content is unreadable.
The unprotected file never leaves your device, so there's no moment where your data sits on someone else's server.
Runs in any browser — lock documents from your phone, tablet or PC with nothing to install.
Any standard PDF reader asks for the password — no extra apps for the people you send it to.
No account, no watermark, no daily cap — protect as many PDFs as you need.
Add the PDF, type the password you want, and apply. The tool encrypts the file in your browser and gives you a locked copy to download — free, no account.
Yes. The file is encrypted with standard PDF password security — a reader without the password can't open the content.
No. The encryption runs locally in your browser. That matters most here: you're locking the file precisely so it never sits unprotected on someone else's server.
There's no recovery. The password isn't stored anywhere — which is the point. Keep a copy of it somewhere safe before you share the file.
Yes — use the Unlock PDF tool with the password you set, and you'll get an unprotected copy of the same document.
No. Any standard PDF reader — Acrobat, browser previews, phone viewers — will ask for the password and open the file normally.
Password protect a PDF — free encryption, no upload