3 Of 9 Extended Barcode Font Jun 2026
The font handles the translation logic for you. You do not need to manually type +A to get a lowercase a . You simply type the text you want, and the font generates the correct sequence of wide and narrow bars so that the scanner reads it as the exact text you typed.
Since standard Code 39 doesn't have bars for lowercase letters, the "Extended" system uses a special mapping technique. It pairs specific special characters (like $ , / , + , and % ) with standard letters to represent the missing characters. 3 of 9 extended barcode font
Despite its age, the 3 of 9 extended barcode font is still in production use today: The font handles the translation logic for you