Below ABAP code is for displaying page Number.

WRITE SY-PAGNO TO L_PAGE_COUNT LEFT-JUSTIFIED.
DO SY-PAGNO TIMES.
READ LINE 5 OF PAGE SY-INDEX.
REPLACE ‘&&&&&’ WITH L_PAGE_COUNT INTO SY-LISEL.
MODIFY CURRENT LINE.
READ LINE 1 OF PAGE SY-INDEX.
REPLACE ‘&&&&&’ WITH L_PAGE_COUNT INTO SY-LISEL.
MODIFY CURRENT LINE.
ENDDO.