I'm not sure whether your callback ever gets passed the current page number. The best is to wrap the header subroutine with your own header:
sub my_header {
# ... do your own stuff:
print "Got parameters @_\n";
# Call old header routine to output other stuff
header();
};
my $pdf = PDF::API2::Simple->new(
header => \&my_header,
footer =>\&footer,
margin_left => 15,
margin_top => 15,
margin_right => 15,
margin_bottom => 45
);
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