Changing Latex book to html

Question

I tried to convert my Latex book into html code using Klaus Gerhards macros but it did only a few chapters and stopped. It also did not include illustrations (which are in pdf). What can I do?

MWE:

\documentclass[12pt]{report}
\usepackage{color}
\usepackage{epsf,epsfig,amsmath,amssymb}
\usepackage{theorem}
\usepackage{makeidx}
\makeindex
\topmargin -0.5in
\oddsidemargin 0in
\textwidth 6.5 in
\textheight 8.7in
\begin{document}
\title{ Working Knowledge: STEM Essentials for the 21st Century}   
\author{Karl Hess}
\maketitle
\newpage
\tableofcontents
\newpage 
\input{./Cap1}
\input{./Cap2}
\input{./Cap3}
\printindex
\end{document}