Auto email invoice PDFs

As a customer, when I pay for a job I would like all invoices (including fee invoies) automatically emailed to me. I can then set up a rule to forward to Receipt Bank, from where they will be automatically pushed to Xero (or just about any other online accounting software).

You already send email notifications, but with no invoice attached. And you already have the PDF generation function on the site. So can you add the two toegther? Most other companies send PDF invoices as standard, can you add this functionality to send the supplier invoice and the fee invoice as a PDF?