Special book-edge design The Shadow Elimination Element (SEE) eliminates the book spine shadow and text distortion associated with books scanned on flatbeds and copiers.Searchable PDF Searchable PDFs provide higher security reliability and easiness to transit and exchange documents; while preserving the look and integrity of the original documents including fonts graphics images and layouts. The Searchable PDF format is a way to easily manage your documents books and images. Fast scanning speed Ergonomic design for fast and efficient scanning Scan speed only 3.6 sec. for an A4-size color grayscale B/W scan at 300 dpi.LED Light Source Conservation and green design. LED light source provides more uniform illumination by using less power and provides better images also be able to protect sensitive materials.