Barcode for dummies

When you use Designer to add the barcode to the form you determine which data is actually captured by the barcode itself. That said, you will need to be sure the file is Reader Extended for the barcode to actually work inside the free Adobe Reader.

What are you trying to do / accomplish? What's the workflow?

Here is a professional barcode site where you can find various barcode tools:

http://www.onbarcode.com/