Protect PDF with Password
Encrypt your PDF layout and prevent unauthorized access or copying. Fully compiled inside your browser window.
Upload & Set Security
📄
Drag & drop your PDF file here
or click to browse from folder
Export Result
Your encrypted PDF file will be available here once processing completes.
Frequently Asked Questions
Do my PDFs get uploaded to any servers to lock them?
No. All PDF operations in this workspace happen on your machine using pdf-lib WebAssembly modules. Your PDF data and passwords stay private and never cross network pipelines.
What is the difference between User and Owner passwords?
The User Password is required to open and view the PDF document. The Owner Password controls restriction rules, such as preventing copying, printing, or form alterations.