Step 1. Go To t-code se73.
Step 2 .Select the system bar code radio button and click change .
Step 3. Press the create button in application toolbar.
Step 4.Select the new button.
Step 5: Enter the bar code name and description.
Step -6 :
Supported
Bar Code Symbologies:
under select the pdf 415 radio button. and press Ok button.
under that select the normal radio button.
Step-7: Press enter and finaly save the barcode in package .
Step -8 :Go To t-code smartforms. and select style radio button
Step-9: Create a character node. on the same screen
In the tabstrip select the standard setting .under the standard setting
. . effect
.... barcode->name-> In that name select the bar code that u created.
Step -10.Apply the character in samrtform ex <c4>wa_item-vbeln</>.