I tried below but no luck

<?xdoxslt:set_variable($_XDOCTX,'var', <?fo:page-number?>)?>

  <?xdoxslt:set_variable($_XDOCTX,'var', xdoxslt:get_variable($_XDOCTX,'var')-1)?>

  <?xdoxslt:get_variable($_XDOCTX,'var')?>

My requiremnt is to have a new page-Coverpage kindof (only with some conditional flag value ) followed by existing  RTF having header and footer . So the Expected O/p is new page should not have page number and the actual page should have

on my code

for example 2 page report preview i get following:

==(if conditional flag =True )====

1st page - without page number (just as i wanted)

2nd page is numbered 2/3 - i wanted it to be 1/2

3rd page is numbered 3/3 - i wanted it to be 2/2

==(if conditional flag NOT True )====

without the cover page

as-is pdf should come 1/2 and 2/2 with two pages

So i was trying to decrease the counter of page number both of below

based on flag value

Please Let me know if you can share some ideas  for this fix