Pdf TOOL
Password Protect PDF - Encrypt & Lock Free
Password protect a PDF in your browser with AES-256 encryption. Set an open password, restrict printing or copying, and download — no upload, no signup.
Process PDF locally
PDF processing runs in your browser. Choose files below; some advanced conversions require dedicated OCR or document-layout engines.
Result
How to use this tool
- Enter or select your input.
- Run the tool and review the result.
- Copy or download the output when available.
About this tool
Password protect a PDF in your browser with AES-256 encryption. Set an open password, restrict printing or copying, and download — no upload, no signup.
Frequently asked questions
Is my data uploaded?
This tool processes input in your browser. Files and text are not sent to our server by this page.