Instead of having to hunt for a barcode or having to scan it at just the right angle, the cashier or customer can point the scanner at any part of the item and have it show up. It can even pick up ...
A barcode encoding library supporting over 50 symbologies including Code 128, Data Matrix, USPS OneCode, EAN-128, UPC/EAN, ITF, QR Code, Code 16k, PDF417, MicroPDF417 ...
Most flatbeds with ADFs will scan legal-size pages via the ADF, but not all do, so be sure to check. You can also find scanners with larger flatbeds, but they will, of course, take up more desk space.