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Specifications

This help topic describes the specific characteristics of the bar codes per type.

Barcode type Character set Length Check digits
Code 128 ASCII (128 characters) variable Mod 103
Code 39 [A-Z]; [0-9]; [ - . $ / + % ] variable (avg. up to 20 chars) optional (Mod. 43)
EAN-13 numeric [0..9] 7 usable digits 1 check digit
EAN-8 numeric [0..9] 12 digits 1 check digit
Postnet numeric [0..9] variable 1 check digit
UPC-A numeric [0..9] 12 digits 1 check digit
UPC-E numeric [0..9] 7 digits 1 check digit