Large format scanners are scanners able to digitize at least A2/C-size documents. Large-format scanners, also called wide-format scanners, can digitize a wide variety of documents by either rolling a document past the scanner's CCD cameras or by having an overhead CCD camera capturing the image. Wide-format scanners are traditionally used within architectural, engineering, cartography and GIS mapping industries to digitize blueprints, CAD drawings and maps for editing, copying and archival purposes.