Show HN: allow your users to customize their printouts (invoices, reports etc.)

Web based printouts, invoices and labels are ugly, hard to design, impossible to redesign and there is no way to integrate them. We at Actual Reports developed a fully functional, easy-to-use browser based tool to change it all. As a cherry on the cake, we offer all of our functionality through the REST API, so anyone can integrate it with their existing web-application to make their customers happy.