How to extract certain set of lines from PDF

[adamnizar01 at gmail.com]

Hello,

I need to extract certain set of lines from PDF
Ex:-
IF(......)
..........
..........
   IF(.....)
   ...........
   ...........
   ENDIF 
ENDIF

I need to copy entire lines from first "IF" till last "ENDIF".and extract it to seperate row of excel sheet.when ever a new occurrance of this kind of IF loops are found out.