PDF Password Lock

PDF Password Lock is a simple and secure PDF protection app that lets you apply a password to PDF files and save them as new locked PDF documents.

The original PDF file is not modified. A new password-protected PDF copy is created instead.

Main features

• Add password protection to PDF files

• Keep the original file unchanged

• Save new locked PDF copies

• View saved history

• Share protected PDF files

• Fast and simple PDF security process

• Local device storage support

• Multi-language support

How to use

1. Select a PDF file

2. Enter a password

3. Apply password protection

4. Save a new locked PDF file

The app processes files locally on your device and only handles files selected by the user.

Important

• If you forget the password, you may not be able to open the protected PDF file.

• PDF encryption compatibility may vary depending on the PDF viewer.

• Some special PDF files may have limited support.

This app is not affiliated with Adobe and is not an official Adobe product.