A document scanner is a device or software application that uses a camera or optical sensor to capture images of physical documents, such as paper forms, receipts, or contracts. It processes these images by cropping, enhancing, and converting them into digital formats like PDF or JPEG. Document scanners are commonly used in offices, educational institutions, and by individuals to digitize paperwork, making storage, sharing, and searching more efficient. Modern document scanners often include features such as automatic text recognition (OCR), cloud integration, and batch scanning, which streamline document management and reduce reliance on physical storage.