Hi,
Let me Explain briefly :-
Using this link you can generate barcode with DataText below it. And It is using IDAutomationHC39M font for the same.
Now my requirement was generate barcode without DataText below and as per Mudassar guidance i found the solution. To generate barcode without DataText below you need to work with fond called "Free 3 of 9 Extended" and you can download the same on this link.
Barcode with DataText below
Font oFont = new Font("IDAutomationHC39M", 16);
Barcode without DataText below
Font oFont = new Font("Free 3 of 9 Extended", 16);