PDF417
PDF417 is a stacked 2D barcode symbology. It was designed to be read by conventional 1D barcode scanners in multiple passes, and is composed of multiple 1D barcodes stacked over each other.
PDF417 are often found on airline boarding passes and driving licenses.
A sample PDF417 barcode is shown below.
Symbology Characteristics
Configuration name |
|
ISO specification | ISO/IEC 15438 |
Encodable character set | Three different compaction modes to efficiently encode numeric, alphanumeric and binary data. |
Capacity | The largest symbol can encode up to 3116 numeric characters, 2335 alphanumeric characters, or 1555 bytes of binary data. |
Integrity protection | Reed-Solomon error correction, with ten error correction levels (0-9) |
Quiet zone | A quiet zone of two modules (2X) is required around the symbol. |
Configuration Options
PDF417 does not have any symbology-specific configuration options.
Limitations
The following elements of the ISO specification are not implemented:
Macro PDF417 (distributing data across multiple codes)
ECI (Extended Channel Interpretation)