Our bar code software is simple and easy to setup. barcodeZONE gives you the ability to integrate the following bar codes into your site: Supported Bar Code Styles (1) Code 128 B (2) 2 of 5 (3) 2 of 5 Interleaved (4) Codabar (5) Postnet (6) UPC-(A) (7) UPC-(E) (8) EAN 13 (9) Code 39. Bar code images are generated as the are requested by the server. Each is usually 1-3k in file size depending on the amount of data you request to be encoded.