Virtuemart File Automation

We have a Joomla 2.5 website, with the latest version of Virtuemart. We need an automated process that would involve emailing two PDF files to our printer (not the customer) whenever they purchase a product. The two PDF's will be different for every product. There are currently only two products, but there would need to be an easy way to add the two files to future products without need for assistance. So the steps would be: 1. Customer purchases product 2. Virtuemart sends the two PDF files related to that product to an email we provide If you have any questions let me know. Please read the project first and write the word "Understood". Also write your steps and suggestions to complete the project with a short description of what you understood.