ITF14 Barcode
ITF14 is a 14 digits barcode used to mark the external containers of products with a EAN identifier. It is based on the I2of5 barcode. ITF14 barcodes usually contain a top and bottom bar (or a rectangle) called the Bearers bar. The purpose of the Bearers bar is to make sure that the barcode is read completely.
Barcode Font Names and Sizes
ConnectCode ITF barcode supports up to seven different heights. These barcodes are provided in seven fonts with different names. The barcode names are appended with characters like "S1" or "S2" etc... with each one of them representing a different height. The list below illustrates the seven different fonts that is supplied for ITF.
- CCodeITF_S1
- CCodeITF_S2
- CCodeITF_S3
- CCodeITF_S4
- CCodeITF_S5
- CCodeITF_S6
- CCodeITF_S7
ITF14 Character Mappings
All characters supported by the barcode is as shown below. All of them have a simple a direct mapping.
Control Character | Barcode Font Character |
Start Character (Top/Down Bearers Bar) | '{' |
Stop Character (Top/Down Bearers Bar) | '}' |
Start Character (Rectangle Bearers Bar) | '|' |
Stop Character (Rectangle Bearers Bar) | '~' |
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The ITF14 Check Digit
For example, the calculation of the check digit of the data string "0001234567890" is calculated as follows.
Data | 0 | 0 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 0 | ||
Starting from the last digit, multiply by 3 followed by 1. | |||||||||||||||
*3 | *1 | *3 | *3 | *1 | *3 | *1 | *3 | *3 | *1 | *3 | *1 | *3 | |||
Sum : | (0*1) + (0*3) + (0*1) + (1*3) + (2*1) + (3*3) + (4*1) + (5*3) + (6*1) + (7*3) + (8*1) + (9*3) + (0*1) = 85 | ||||||||||||||
If Sum Modulo 10 equals 0, the result is 0. Otherwise the result is 10 - (Sum Modulo 10) | |||||||||||||||
Modulo 10 : | 10 - (85 % 10) = 5 | ||||||||||||||
Data to be encoded | 00012345678905 | ||||||||||||||
Mapping | 00 = ' ' , 01 = '!' , 23 = '7' , 45='M' , 67='c' , 89 = 'y' , 05 = '%' |
The characters "{ !7Mcy%}" can then be keyed in to the text editor with the appropriate font selected to generate a ITF14 barcode with check digit.
Using ConnectCode's ITF14 Barcode Font
For example, to encode the data "0001234567890", you can key in the following in your text editor and choose the ITF14 barcode font.
Input (Into the Encoder or VB formulas):
0001234567890 (Generate Check Digit)
Manual Input:
{ !7Mcy%}
Output:
Input (Into the Encoder or VB formulas):
0001234567890 (With Rectangle Bearers Bar)
Manual Input:
" !7Mcy%"
Note - The first " is Ascii 147 and the second one is Ascii 148.
Output:
If you are using the Encoder, it will automatically put in the start/stop characters for you and allow you to choose the optional check character. On top of that, automatic padding of '0' to make the data contain 14 digits will be carried out.