Scanners are sophisticated devices that are used to capture and convert physical documents, images, or even three-dimensional objects into digital format. These devices come in a variety of models and sizes, ranging from handheld portable scanners to large flatbed scanners. They work by using sensors to detect the details of the original document, and then converting this information into a digital image that can be saved, edited, and shared electronically. Scanners are commonly used in offices, libraries, and homes for tasks such as copying, archiving, and sharing documents. They are essential tools for modern document management and help to streamline workflow and improve efficiency.