Micro PDF 417

MicroPDF417 is a multi-row symbology based on PDF417 designed for applications requiring a greater area efficiency but lower data capacity than PDF417. A specific and limited set of symbol sizes is available, each size including a fixed level of error correction.

MicroPDF417 provides for three encoding modes: Text, Byte and Numeric compaction. Text is for general text, Numeric for encoding data consisting only of digits, and Byte to allow for the first 127 ASCII characters but with a reduced level of efficiency. Four symbol widths are permitted, each specifying the number of data columns (1 – 4). Within each symbol width a variable number of rows provide for a maximum data capacity of:

Text compaction mode 0: 250 characters (2 data characters per codeword)

Byte compaction mode 1: 150 characters (1.2 data characters per codeword)

Numeric compaction mode 2: 366 characters (2.93 data characters per codeword)

The Level parameter for MicroPDF barcodes set the number of data columns within the barcode, which may be 1 – 4.

The industry standard Macro sequences [)>{RS}05{GS} and [)>{RS}06{GS} are supported (where {RS} represents ASCII 30 and {GS} is ASCII 29).

The following character translations are made when the value of the mode parameter is increase by 8.

String	converted to
{ET}	ASCII 4
{FS}	ASCII 28
{GS}	ASCII 29
{RS}	ASCII 30

Appended symbols are not supported at this time.

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