Welp no need for barcodes, use one of the pdf modules to create your cover page with routing info included and insert it as the front page. on the other side use a pdf module to get that information out. Bar codes are great as physical indexers because most of the time the barcode scanner reads a short index numnber or secuence that allows you to pull up related electronic data. They are the wrong tool for a purely digital transaction.

-Waswas