I've actually been using this to convert large PDF files to HTML to be displayed in-browser. It's for my work, so I don't feel comfortable posting a link to the demo instance here.

It is definitely the best solution I've found so far. The outputted HTML / CSS / images look almost identical to the source PDF. That being said, there are a few issues still:

* One Gigantic (600kb) CSS file from a single PDF

* Hundreds of individual fonts

* HTML semantics are non-existent

These are all relatively easy to fix, I believe. I have found my own solutions to most of the issues in post-processing.

Kudos to you, coolwanglu. Also, I'd like to get in touch with you about lending a hand to fix some of the issues I've encountered.

Thanks for a cool piece of software!