I'm wanting to get details from a pdf file. I can get the easy stuff:

*File: Bathgate_ASRs.pdf
Author ->Bob Webster
CreationDate ->D:20060817180621+01'00'
Creator ->Writer
Producer ->OpenOffice.org 2.0
Title ->COMPETITIVE SAFARI
MD5 Checksum: 18221baccb3c49a73dc9772302897e50
Size: ~169 KB (173585)
[download]

using the following snippit of code:

sub check_file {
  my $file = shift;

  my $pdf = PDF::API2->open($file);

  my %info = $pdf->info;
  print "\n*File: $filename\n";
  foreach my $key (sort keys %info) {
    print "$key ->";
    print narrow_char($info{$key});
    print "\n";
  }
  open (FILE, $file);
  binmode(FILE);
  print "MD5 Checksum: ",Digest::MD5->new->addfile(*FILE)->hexdigest, 
+"\n";
  close(FILE);

  my $size = (stat("$file"))[7];
  my $orig_size = $size;
  if ($size < 1024) {
    print "Size: $size bytes\n";
    $size = undef;
  }
  if ($size) {
    $size = int($size / 1024);
    if ($size && $size < 1024) {
      print "Size: ~$size KB ($orig_size)\n";
      $size = undef;
    }
  }
  if ($size) {
    $size = int($size / 1024);
    print "Size: ~$size MB ($orig_size)\n";
  }
}
[download]

What I now want find out two more things: the version of the pdf format, and the number of pages in the document... anyone got any hints?