Bar code software identifies or decodes bar code symbology, generates output strings corresponding to barcode values, creates bar code fonts, prints bar codes, and/or performs bar code tracking. Bar code software can analyze or print many different bar code symbologies, including universal product code (UPC) bar codes, Code 128 bar codes, Code 39 bar codes, interleaved 2 of 5 bar codes, PDF 417 bar codes, and many more types of barcodes that are used in applications ranging from shipping to inventory control to cataloging books by ISBN number.