Encrypt PDF

Password-protect with AES-256 and fine-grained permissions.

On your device. No watermark. No sign-up.

How to use Encrypt PDF

1. Open your file. Encrypt PDF starts as soon as you drop a file or click the box above — the file opens in your browser and stays there.
2. Choose your options. Drop your PDF in, set your password or scrubbing options, then download the protected or cleaned file.
3. Download the result. The finished file is generated on your device and saved straight from your browser — free, with no watermark added.

This tool is processed locally with JavaScript inside your browser tab. The document is not uploaded, stored or seen by a server, which makes it suitable for contracts, invoices, CVs and medical or financial records.

More security & privacy tools

• Remove Password — Unlock a PDF you can open, and save a decrypted copy.
• Unlock PDF — Lift printing, copying and editing restrictions.
• Strip Metadata — Scrub author, producer and hidden document info.
• Privacy Risk Scanner — What is this PDF leaking? Metadata, PII — full report.

← All free local PDF tools