GNU Barcode is a tool to convert text strings to printed bars. It supports
a variety of standard codes to represent the textual strings and creates
postscript output.

Main features of GNU Barcode:

  * Available as both a library and an executable program
  * Supports UPC, EAN, ISBN, CODE39 and other encoding standards
  * Postscript and Encapsulated Postscript output
  * Accepts sizes and positions as inches, centimeters, millimeters
  * Can create tables of barcodes (to print labels on sticker pages)