ISO/IEC 15438:2015 specifies the requirements for the bar code symbology known as PDF417. It specifies PDF417 symbology characteristics, data character encodation, symbol formats, dimensions, error correction rules, reference decoding algorithm, and a number of application parameters. This product is a single user license only. Copying and/or networking is prohibited. By purchasing this product, you agree to abide by the AIM End User License Agreement.