We offer you the following features: File Manager Merge PDF Split PDF Scan PDF Lock PDF Unlock PDF Support browsing Word, Excel, PDF, PPT The following functions require the FOREGROUND_SERVICE permission The application provides a permanent notification bar, which allows users to access the application's functionality by simply clicking a button on the notification bar. The application also provides cleanup capabilities. The application will give the user a push notification message to remind the user to clean up the unwanted PDF files in time.