Count the number of pages in a PDF in only PHP [closed]

Answer 1

You can use the ImageMagick extension for PHP. ImageMagick understands PDF's, and you can use the identify command to extract the number of pages. The PHP function is Imagick::identifyImage().

Answer 2

On *nix environment you can use:

exec('pdftops ' . $filename . ' - | grep showpage | wc -l', $output);

Where pdftops should be installed as default.

Or as Xethron suggested:

pdfinfo filename.pdf | grep Pages: | awk '{print $2}'

Answer 3

$pdftext = file_get_contents($caminho1);

 $num_pag = preg_match_all("/\/Page\W/", $pdftext,$dummy);

Answer 4

this one does not use imagick:

function getNumPagesInPDF($file) 
{
    //http://www.hotscripts.com/forums/php/23533-how-now-get-number-pages-one-document-pdf.html
    if(!file_exists($file))return null;
    if (!$fp = @fopen($file,"r"))return null;
    $max=0;
    while(!feof($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($fp);
    return (int)$max;

}

Answer 5

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.

Answer 6

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).