PDF Shield: Lock Unlock PDF is a user-friendly app designed to provide you with a simple and effective solution to secure your PDF files. Whether you are a business professional, a student, or someone with confidential documents, this app will keep your files safe from unauthorized access. 🔐

With this app, you can easily add a password to your PDF files and protect them from being opened or edited without your permission 🔒. The app is compatible with multiple platforms, including iOS, Android, and Windows, so you can access your protected files on any device.

The app is straightforward and efficient, with no unnecessary features cluttering the interface. You can quickly lock or unlock your PDF files with just a few taps, without needing to sign up or provide any personal information. You can use PDF Shield: Lock Unlock PDF app as much as you want, with unlimited usage and no hidden fees.


It is a comprehensive app that allows you to secure your PDF files with ease. The app's key feature is its security function, which requires a password 🔑 to permanently unlock your PDF files.

⭐ Tips:

👉Choose a strong and unique password to ensure maximum security.
👉Remember your password or store it securely since it cannot be recovered if lost.
👉Ensure you enter the correct password when unlocking a PDF file to avoid permanent locking.
👉Use the PDF lock remover feature only when necessary to maintain the file's security.
👉Take advantage of the PDF locker feature to store locked files in a secure folder.
👉Regularly update the app to ensure the latest security features and bug fixes.
👉Contact the app's support team for any questions or concerns.
👉Keep your device and app updated and secure to ensure PDF files remain safe and confidential.
👉No sign-up or sign-in is required to use the app.

⬇ Download now to put encryption / decryption to your important PDF documents in just a few steps.