On-Tap Plus lets you print bar codes from any application on any printer. Simply surround the information to bar code with a special character and you can print UPC, EAN, Code 39, I2 of 5, MSI, PostNet , 2D bar codes and many more. Include different bar codes with different characteristics on the same page. Control bar code ratio, height, check digit, density, orientation, human readable characters and bar code placement. Easy to use.