In your design program, create a blank text field where you want the barcode to be. How do I make a Code 39 barcode in a design program? If you'd like to calculate this mod 43 by hand, you'll find full information A Code 39 barcode with check digit is referred to as 'Code 39 mod 43'. Scanning Code 39s with this optional check digit requires this feature to be enabled in the barcode scanner. Code 39 barcodes sometimes use an optional modulo 43 check digit based on the value associated with each of the Code 39 characters. How do I calculate a Code 39 check digit?Ī check digit is not typically required for Code 39s. The asterisk is the Code 39 start and stop bar.įor example, to make a Code 39 of Azalea's phone number we type *2063419500*, then format the string of text into an Azalea Code 39 barcode font. Simply add an asterisk (*) before and after the data - letters, numbers, or letter and numbers - that you want to encode.
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