Password Protect PDF
Encrypt your PDF with a password to keep sensitive data confidential. Add an open password, optionally restrict printing, and download the locked file — free, with no signup.
Unlike most online tools, PixelDocs encrypts entirely in your browser. Your file never leaves your device, so there is nothing to upload, store, or delete afterwards.
Browser-side encryption
Never uploaded
No signup
Free forever
Drag & drop a PDF here, or
Adding password...
How to password-protect a PDF
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Add your PDF
Drag and drop your file into the box above, or click browse. It stays on your device.
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Enter a strong password
Type your password twice. Use 8+ characters with mixed case, numbers, and symbols. Optionally tick Restrict printing.
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Protect and download
Click Protect PDF and download your encrypted file. Share the password through a separate channel.
Protect PDF — FAQ
You
Is my file really private when I protect it here?
PixelDocs
Yes — everything runs locally in your browser, so your file is never uploaded to any server. Most online tools upload your document first and delete it later; with PixelDocs there is nothing to delete, because nothing ever leaves your device.
You
What kind of password protection is applied?
PixelDocs
The tool sets a password on your PDF and can restrict printing. Use a strong password (8+ characters, mixed case, numbers, symbols). Note that some PDF readers ignore permission restrictions — the open password is what truly locks the file.
You
What if I forget my PDF password?
PixelDocs
There is no recovery — we never see or store your password, so keep a copy somewhere safe before you protect the file.
You
Does it work on mobile, Mac, and Windows?
PixelDocs
Yes. It runs in any modern browser on any device — no installation, no signup, no queues.
