ISO/IEC 15438

ISO/IEC 15438 - Information technology - Automatic identification and data capture techniques - PDF417 bar code symbology specification

Organization: ISO/IEC

Overview

Defines PDF417: a stacked 2D barcode of 3-90 rows × 1-30 columns of 17-module codewords. Reed-Solomon error correction at 9 levels. Three encoding modes (Text/Byte/Numeric) with per-segment switching.

Why it matters for RFID

PDF417 is the symbology behind AAMVA US driver licences, IATA boarding passes (BCBP), and FedEx shipping labels. The standard reference for stacked 2D barcodes.

Official document

https://www.iso.org/standard/65502.html