There is no 100% automated way to successfully convert PDF files to responsive HTML. They key word here is responsive. Sure there are tools out there that will take your PDF and turn it into a HTML page, but it will certainly not be responsive. In other words, it will still look and act like a PDF on mobile if not worse.
With FlexPDF you simply click on PDF elements and they are converted to HTML elements which you can then edit in our TypeLoft editor to include column layouts, video, animations, audio and more. Our editor is a visual drag and drop RESPONSIVE content editor which allows you to produce content that looks and reads great on any device, size and orientation.