Free PDF Tool

Protect & Password-Lock PDF

Add password protection, restrict printing, and encrypt your PDFs with AES-256 — all in your browser.

Protection Options

Set an open password that recipients must enter to view the PDF.

Allow viewing but prevent copying text, images, and other content.

Prevent recipients from printing the document.

Military-grade encryption to protect sensitive documents.

100% free, no limits

Local processing — no server upload

AES-256 encryption standard

Instant protection

Process multiple PDFs

No watermark added

Sign your PDF electronically in seconds. Free, legally binding, no account required.

No registration needed. Upload, sign, download.

Secure your documents with military-grade encryption.