Add a password to a PDF so only people who know it can open it. Free to try, private — the password never leaves your browser.
About the Protect PDF Tool
Encrypts your PDF with a password of your choice, and lets you restrict printing and copying. The file is encrypted entirely on your device before download — DCPIXEL never sees the file or the password.
100% Private — Processed in Your Browser
Every file stays on your device. DCPIXEL processes images entirely using the browser's built-in Canvas API and WebAssembly — zero server uploads, zero data collection.
Premium Features & Batch Processing
Get started with our free tier for single-file operations. Upgrade to DCPixel PRO to unlock high-speed batch processing, local AI background removal, and advanced PDF controls.
Frequently Asked Questions
What happens if I forget the password?+
The PDF cannot be opened without it, and DCPIXEL has no way to recover or reset it since we never see the password or the file.
Can I restrict printing or copying separately from the password?+
Yes. Even with the correct password, you can disable printing and/or copying permissions when protecting the file.
Is the encryption strong enough for sensitive documents?+
This uses standard PDF encryption, suitable for everyday privacy needs like sharing personal or business documents. For highly sensitive/regulated data, consult your organization's security requirements.
User Reviews
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