The quality of the report depends significantly on the designer. I've seen some very good looking documents generated client side with pdfmake (JavaScript). In

The quality of the report depends significantly on the designer. I've seen some very good looking documents generated client side with pdfmake (JavaScript). In my SaaS product (link in profile), we generate PDF invoices with it, and they look very professional. It's a bit painful to get things typeset correctly, but once you have it right, the documents look great. pdfmake is a good option if you don't want to load your server CPUs up with generating PDFs...