Bacodes on Packing Slips and/or Invoice Slips

Can I add a bar code to represent the Order Number?
This way I can scan the Order Number, when it gets picked up.

Thanks

There's this:

http://www.zen-cart.com/index.php?ma...roducts_id=977

I haven't used it, so I don't know exactly how it works.

Thanks for the thought.
That product address bar codes for the products.
I am looking to add a bar-code for the purchase order number.