PHP - Abrir pdf de fpdf en un div?

<?php

# cambiamos las cabeceras...

header("Pragma: public");

header("Expires: 0");

header("Cache-Control: must-revalidate, post-check=0, pre-check=0");

header("Content-Type: application/force-download");

header("Content-Type: application/pdf");

header("Content-Type: application/download");;

header("Content-Disposition: attachment; filename=\"fileName.pdf\"");

header("Content-Transfer-Encoding: binary");

$handle=fopen("fileName.pdf","r");

$contents='';

while (!feof($handle)) {

	$contents.=fread($handle, 8192);

}

fclose($handle);

echo $contents;

?>