Basic introduction of 2D Barcode A QR code (Quick Response code) is a 2D barcode type. It consists of black squares arranged in a square grid on a white background, which can be read by a camera, scanner, or other imaging devices. PDF417 barcodes are a type of stacked, variable length, bi-directional 2D barcode. It is one of the most widely used 2D barcodes, most commonly found in logistics, transportation (boarding passes), government identification (driver licenses and identification cards), inventory, and document management (postal packages). The Datamatrix is a 2D high-density barcode symbol. Since 2000, this barcode has been recognized as a standard of ISO/IEC […]