I have a learned aversion to PDF features such as forms. It's partly because HTML already has pretty good forms; and partly because of the long history of gross

I have a learned aversion to PDF features such as forms. It's partly because HTML already has pretty good forms; and partly because of the long history of gross PDF security failures by Adobe. I think a PDF viewer (I prefer "reader", because that's what Adobe called their free product) is for viewing PDFs. The point of PDF, to my mind, was that you got a much higher level of control of typography and design than you could get with HTML. So designers and marketers liked it. I have never bought into interactive PDFs.