Actually I think I just found it. I have not tried this and just found it on the internet. On this site
http://fpdf.org/ in the examples
PHP Code:
<?php
/***************************
Sample using a PHP array
****************************/
require('fpdm.php');
$fields = array(
'name' => 'My name',
'address' => 'My address',
'city' => 'My city',
'phone' => 'My phone number'
);
$pdf = new FPDM('template.pdf');
$pdf->Load($fields, false); // second parameter: false if field values are in ISO-8859-1, true if UTF-8
$pdf->Merge();
$pdf->Output();
?>