How to Password Protect a PDF Without Uploading to a Server
Encrypt a PDF with a password without sending it to any cloud server. 100% local processing.
Concerned about uploading sensitive documents to a cloud service to add a password? FixMyPDF encrypts PDFs entirely in your browser — nothing is ever sent to a server.
How Local Processing Works
FixMyPDF uses WebAssembly — a technology that runs compiled code directly in your browser. Your PDF file never leaves your device, even while the password is being applied.
Open the Protect Tool
Go to fixmypdf.in/tools/protect in Chrome, Firefox, Safari, or Edge.
Upload and Encrypt Locally
Select your PDF. The "upload" only loads the file into your browser's memory — it doesn't send it anywhere.
Set Password and Download
Enter your password. The encryption runs in the browser and the result downloads directly from your local browser session.
Verify With Network Tools
Open browser developer tools (F12 → Network) and watch — no outbound file upload requests occur during processing. Your document stays on your machine.
Try Protect PDF Now — Free
Browser-based, private, and instant. No account or software required.
Open Protect PDF