Storyline 2 Example - Generating a PDF Certificate for users who successfully complete a quiz

Hi all-

First - Ryan, thanks so much!  This is a great resource and your continued support for everyone is amazing.  I am a bit new to the coding/java side of things so please excuse my newbie question.  I can't, for the life of me, figure out how to modify the certificate image.  We have a PDF version of a certificate that I am trying to make this work with, and I'm really struggling.  I was able to copy your file (thank you!) into the project and it does generate the basic certificate as you intended.  Now, I just need some direction in getting our PDF template as the background!  

Any help from anyone would be amazing.  We are on a tight deadline and I've been wracking my brain for hours now.  

I am attaching our certificate for you all to see what we're looking to fill (simply name and date, that's it!)

Best,
Logan