wkhtml2pdf.php

<?php
$opt = array(
	"--zoom"=>'1',
	"--disable-smart-shrinking"=>'',
	"--page-size"=>'A4',
	"--orientation"=>'Landscape',
	"--margin-bottom"=>'0',
	"--margin-top"=>'0',
	"--margin-left"=>'0',
	"--margin-right"=>'0'
);
$args = array(
	"url"=>'your url',
	"file"=>'output.pdf'
);

$tmpFile = "/tmp/".$args['file'];

$optStr = '';
foreach ($opt as $key => $value) {
    $optStr .= ' '.$key.' '.$value;
}

$cmdLine = '/usr/bin/wkhtmltopdf'.$optStr.' '.$args['url'].' '.$tmpFile;
//die($cmdLine);

$output = shell_exec($cmdLine);

if (file_exists($tmpFile)) {
    header('Content-Disposition: inline; filename="'.basename($tmpFile).'"');
  	header('Content-Type: application/pdf');
    header('Expires: 0');
    header('Cache-Control: must-revalidate');
    header('Pragma: public');
    header('Content-Length: ' . filesize($tmpFile));
    readfile($tmpFile);
	unlink($tmpFile);
    exit;
}else{
	die("File not found.");
}
?>