This document will explain the printing of bar code using SAP Scripts/Smart forms
Target Readers: SAP-ABAP consultants with knowledge of layout designing.
Definition: Bar codes are often printed on labels to allow machine to read the data. SAP has provided this feature to achieve through SAP Script / Smart forms
A Bar code will looks like: 
Follow the steps for creation of customize bar code style:
Step1: Go to T-code: SE73 Click on ‘System bar code’ Click on ‘Change’
Step2: Click on create icon on the screen, It will ask for create new barcode technology or conventional bar code technology
Step3: Choose for the new bar code technology. Provide bar code name and short text
In the bar code symbology choose ‘PDF417’. The below are the SAP supported barcode formats.
Step4: Provide barcode name and short text
Step5: In this step choose the barcode alignment as ‘Normal’, this will provide the scan direction
Types of alignment: The alignment is to provide scan direction of the barcode
Normal alignment will scan from left to right.
Rotated alignment will scan by 90 degree from top to bottom
Inverted alignment will scan by 180 degree from right to left
Bottom-up alignment will scan by 270 degree from bottom to top
Step6: After this provide the below parameter for the barcode
Step7: Now save the barcode definition in a transport request
Step8: Provide the Transport request details as below.
Step9: Now the new customized system barcode ‘ZDEMO’ is ready for using in layout
How to use the barcode style in SAP Script:
Go to SE71 à Create a simple script ‘ZDEMO_BARCODE’ provide the necessary details save and activate it.
Create a new character format C1
Go to à Create element à Give the name and description for character format
In the standard attribute provide the customized barcode name
Provide this character format C1 in the text editor for the element data which you want to display in barcode format
How to use barcode style in Smartforms:
T-code: Smartforms à Created a simple smart form for demo purpose with main page
Demo on bar code printing using SAP Scripts/Smart forms
原文地址：http://blog.csdn.net/champaignwolf/article/details/42532793
