What you basically need to do is move all of the xfa data into a single field (textarea, or just an internal node) and then do your barcode calculations on that single field. I'll see if I can't dig up another sample.

Pablo, if you are able to extract XML from the barcode decode then technically, you should have your data. Again, dropping the first 2 bytes of the data stream before you run the data through a DEFLATE process should provide you with the extracted data you're looking for.

There is a trick to the compression and decompression for the barcode. The barcode itself is FLATE compressed. However, you need to drop the first 2 bytes of the data stream to DEFLATE the data outside of LiveCycle.Lee.