http://html2fpdf.sourceforge.net/

Perchè non provi la libreria html2fpdf ??
Basta che inserisci poke righe di codice php e poi l'html di come visualizzi la pagina da rendere in pdf:

<?
require_once("html2fpdf.php");
ob_start();
?>
<html>
.
.
.
.

</html>

<?

//Output buffer in variable
$html = ob_get_contents();

//delete output buffer
ob_end_clean();

$pdf=new HTML2FPDF();
$pdf -> AddPage();
$pdf -> WriteHTML($html);
$pdf ->Output ('doc.pdf','I');

?>