CODE128C encodes digit pairs as single bar symbols, producing the shortest possible barcode for a given run of numbers. A 14-digit input encodes in 7 symbols instead of 14.
Input requirements
Digits only. The total digit count must be even; an odd-length input is invalid. Pad a leading 0 if needed to meet that constraint.
Typical use
Shipping container labels, GS1-128 serial numbers, and any high-density numeric label where bar width is constrained. For inputs that mix letters with digits, use CODE128B or CODE128 Auto.