A document scanner app with QR reader, PDF generator, and sharing functionalities allows users to scan documents using their smartphone's camera and save them as PDF files. Additionally, the app also enables users to read and generate QR codes, which are commonly used for information sharing or to quickly access a website or app. With the PDF generator function, users can easily convert their scanned documents into PDF format for easy sharing and archiving. The sharing function allows users to quickly send their scanned documents or generated PDF files via email or other sharing platforms. This app is a useful tool for individuals and businesses looking to streamline their document management and simplify their QR code usage while also easily sharing and archiving their scanned documents.