This bar-code consists of the digits 0-9 only. There can be blanks before or after the digits. If the input data contains an odd number of digits, the system will add a preceding zero. The system also adds start and stop codes before and after the number.
If you try to use Interleaved 2 of 5 with non-numeric data, the contents will be printed with IBM font-id 0011 (10 pitch courier).
The Interleaved 2 of 5 barcode must consist of an even number of digits. If you activate the checksum digit, then InterForm400 might insert a '0' in front of the checksum digit, if necessary to have an even number of digits.
ITF-14 Barcodes should be defined as an interleaved 2 of 5 barcode - except you need to add a box around the edges of the barcode. The size of ITF-14 barcode is fixed, so once you have setup the size of the barcode itself (with a valid sample input), you can adapt the box to the size of the barcode.