The application allows the user to scan documents using the device's camera or by importing images from the gallery. Each scan is saved as a new PDF file with a unique name.
The main screen displays a list of all generated PDF documents, showing a preview of the first page of each. For each document in the list, the user has the following options:
* **View**: Open the PDF in an external PDF viewer.
* **Export**: Share or save the PDF file to another location.