OceanPDFMakerPassword Protect PDF
Add a password to a PDF so only people who know it can open the file.
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Drop a PDF here, or click to choose
One file at a time
🔒 Your files are processed entirely in your browser. Nothing is uploaded, and your password never leaves your device.
How to password protect a PDF online
Choose a PDF file, then type the password you want to lock it with (and type it again to confirm). Click "Protect PDF" and a new, encrypted copy of your file downloads instantly — anyone opening it will be asked for the password first. Everything happens locally in your browser using AES-256 encryption; your file and password are never uploaded to a server, which makes this safe for contracts, IDs, and other sensitive documents.