PDF417 is a 2d barcode (stacked symbology) used in a variety of applications, primarily transport, identification cards, and inventory management. PDF stands for Portable Data File and was developed by Symbol Technologies. PDF417, or Portable Data File 417, uses built-in error correction to ensure better readability.” PDF417 barcodes can encode one to two hundred characters per symbol, or more than a kilobyte of data per label. PDF417 was developed by Symbol Technologies (1989-1992) and is currently maintained by ISO/IEC. PDF417 barcodes are used in logistics applications, transport systems, identification for items such as driver’s licenses and passports, and document management applications. With a slightly different composition compared to other 2D barcodes, PDF417 barcodes can be described as a set of linear barcodes stacked on top of one another, thus why they are sometimes described as a “stacked linear symbology.