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)