VeryPDF Knowledge Base

Counting the exact number of pages in any PDF document

'-----------------------------------------------------------------
' IF you have ability then for PDF 1.3 version also
' Open file  pdf in binarymode
' Read last 50 lines of that file
' In between somewhere u will find a line
'   "/count xx" pages the xx is # of pages

'MADE ON 14TH AUG 06
'-----------------------------------------------------------------------
' open the PDF  in binary mode & count the pages
' search for "/N  xx"
'             or "/Count xx"

Public Sub pagecount(sfilename As String)
On Error GoTo a
Dim nFileNum As Integer
Dim s As String
Dim c As Integer
Dim pos, pos1 As Integer
pos = 0
pos1 = 0
c = 0
' Get an available file number from the system
nFileNum = FreeFile
'OPEN the PDF file in Binary mode
Open sfilename For Binary Lock Read Write As #nFileNum
  ' Get the data from the file
  Do Until EOF(nFileNum)
    Input #1, s
    c = c + 1
    If c <= 10 Then
        pos = InStr(s, "/N")
    End If
    pos1 = InStr(s, "/count")
       If pos > 0 Or pos1 > 0 Then
            Close #nFileNum
            s = Trim(Mid(s, pos, 10))
            s = Replace(s, "/N", "")
            s = Replace(s, "/count", "")
            s = Replace(s, " ", "")
            s = Replace(s, "/", "")
            For i = 65 To 125
                    s = Replace(s, Chr(i), "")
            Next
            pages = Val(Trim(s))
            If pages < 0 Then
                pages = 1
            End If
            Close #nFileNum
            Exit Sub
        End If
        'imp only 1000 lines searches
        If c >= 1000 Then
             GoTo a
        End If
  Loop
    Close #nFileNum
    Exit Sub
a:
    Close #nFileNum
    pages = 1
    Exit Sub
End Sub
============================================
I actually went with a combined approach. Since I have exec disabled on my server I wanted to stick with a PHP based solution, so ended up with this:

Code:

function getNumPagesPdf($filepath){
    $fp = @fopen(preg_replace("/\[(.*?)\]/i", "",$filepath),"r");
    $max=0;
    while(!feof($fp)) {
            $line = fgets($fp,255);
            if (preg_match('/\/Count [0-9]+/', $line, $matches)){
                    preg_match('/[0-9]+/',$matches[0], $matches2);
                    if ($max<$matches2[0]) $max=$matches2[0];
            }
    }
    fclose($fp);
    if($max==0){
        $im = new imagick($filepath);
        $max=$im->getNumberImages();
    }

    return $max;
}
If it can't figure things out because there are no Count tags, then it uses the imagick php extension. The reason I do a two-fold approach is because the latter is quite slow.
==================================================
Try this :

<?php
if (!$fp = @fopen($_REQUEST['file'],"r")) {
        echo 'failed opening file '.$_REQUEST['file'];
}
else {
        $max=0;
        while(!feof($fp)) {
                $line = fgets($fp,255);
                if (preg_match('/\/Count [0-9]+/', $line, $matches)){
                        preg_match('/[0-9]+/',$matches[0], $matches2);
                        if ($max<$matches2[0]) $max=$matches2[0];
                }
        }
        fclose($fp);
echo 'There '.($max<2?'is ':'are ').$max.' page'.($max<2?'':'s').' in '. $_REQUEST['file'].'.';
}
?>

The Count tag shows the number of pages in the different nodes. The parent node has the sum of the others in its Count tag, so this script just looks for the max (that is the number of pages).

You can also use Spool File Page Counter SDK to count the pages in PDF file, Spool File Page Counter SDK can be downloaded from following web page,

http://www.verydoc.com/spool-page-count.html

Advanced PDF Tools Command Line has ability to count the PDF pages too, Advanced PDF Tools Command Line can be downloaded from following web page,

https://www.verypdf.com/pdfinfoeditor/index.html#dl