Our company is looking to integrate invoices into a new system we are developing.

We require some a solution to create a layout of the invoice and then convert to pdf.

We have considered just laying out the invoice in html/css then converting to pdf. We have also considered using SVG->PDf conversion.

Both of these solutions integrate well into our existing templating language used for our web application.

Historically we have been a Microsoft based business and used Crystal Reports for such a task but we are looking an open source Linux solution for this project.

Does any one have any suggestions of an approach or technology we could use for such a task?