Secure the complete document with one password
Modern 256-bit encryption helps keep the PDF private when it is shared, emailed, or stored.
Protect PDF
Secure a PDF with a password while keeping the original document unchanged.
Choose the PDF you want to protect
Your PDF and password stay on this device while the new copy is created.
Nothing is uploaded or stored.
Your PDF and password stay on this device
Protection happens in your browser or desktop app. The original PDF is never changed.
Protect PDF — quick answers
How do I use the Protect PDF tool?
Open Protect PDF, add your document, set an open password, and download the encrypted PDF that asks for the password before opening.
More questions? See the All You Can PDF FAQ.