As mentioned earlier, a good free solution to convert PDF to HTML is the open-source project pdftohtml
If you are a Windows user, you can get the Windows binaries from here
(you can try to download the current latest v0.35 directly from here
This version is console, i.e. text-based. If you prefer a nice and easy graphical interface for it, get it from here
(note that the console version is still required).
Maybe someone feels like posting his/her impressions of this tool.