WordPress Gift Voucher PDF Creation

Hi, We are using a Gift Certificate script for Wordpress which is generating a Gift Voucher and emailing it out to our customers. What we need is someone to take this simple script and add the ability to generate a PDF copy of the certificate and attach it to the email. The website is based on Word Press and here is a link to the opensource Gift Voucher creator which can be downloaded. [login to view URL] The file that needs adjusting is [login to view URL] Looking to spend a maximum of $50 for this simple alteration.