ITF-14 Introduction

This page concerns basic information of ITF-14, as well as its generating and printing components.

ITF-14 Overview

 ITF14 barcodeis the GS1 implementation of an Interleaved 2 of 5 bar code to encode a Global Trade Item  Number. It is continuous, self-checking, bidirectionally decodable and it will always encode 14 digits.  ITF-14 is used on packaging levels of a product in general.


Generating and Printing ITF-14 Barcodes

OnBarcode provides comprehensive ITF-14 generators and scanner components for Java, .NET, Android, iOS developments and several reporting applications.

ITF-14 Structure

The structure of ITF-14 is as below:

Please note that an ITF-14 symbology always contains 14 numeric digits (including check digit).

ITF-14 Barcode Size Setting

X module: the theoretical widths of the bars (light or dark) are:
  • Narrow bar = 1.016 MMT (0.04 INH)
  • Wide bar = 2.540 MMT (0.10 INH)

N dimension (wide/narrow bar ratio): 2.0 to 3.0 inclusive. The recommended width of the wide bars (dark bars) is 2.5 times the width of the narrow bars (dark bars).

Quiet zone: Qmin= 10X. ITF-14 has target widths of 10.2 millimeters (0.40 inch).

Bearer Bars: For printing methods requiring printing plates, the nominal Bearer Bar has a constant thickness of 4.8 millimeters (0.19 inch) and must completely surround the symbol, including its Quiet Zones, and butt directly against the top and bottom of the bars (dark bars) of the symbol.

However, for printing methods that do not require printing plates, it is not mandatory to print the vertical sections of the bearer bar. A minimum space of 1 millimeter (0.04 inch) between the bottom line of the Bearer Bar and the top of the human readable characters is required. So the bearer bar should be a minimum of twice the width of a narrow bar.

Barcode height: For ITF-14 Symbols, the height of the bars (dark bars) in the target size symbol is 32 millimeters (1.25 inches).

Human Readable Interpretation of ITF-14: Human Readable Interpretation may be printed anywhere in the area surrounding the symbol as long as the Quiet Zones are not encroached upon. As for specific ITF-14 symbol size setting, two factors should be considered: X dimension, N dimension and barcode width.

Please get details from ITF-14 size setting instruction.

ITF-14 Data Encoding

ITF-14 encodable character set: numeric 0-9 (ASCII characters 48 to 57 inclusive, in accordance with ISO 646)

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