Hi Raju,
there are lots of blogs available go through that you will get to know and one more thing elaborate your requirement once..
http://wiki.scn.sap.com/wiki/display/CRM/Print+an+Adobe+Form+from+CRM+Web+UI
http://scn.sap.com/people/satishkumar.palyam2/blog/2011/07/07/adobe-forms-in-webui
Buttons to print ADOBE Form on CRM Webclient UI
Thanks & Regards,
Srinivas.