Researching the available converters the one that is most attractive and most maintained is LaTeXML.
Firstly I have to setup perl to install packages locally for me to use:
PATH="$PATH:~/perl5/bin" export PERL5LIB=~/perl5/lib/perl5 export PERL_MB_OPT="--install_base '$HOME/perl5'" export PERL_MM_OPT="INSTALL_BASE=$HOME/perl5" curl -L http://cpanmin.us | perl - -l ~/perl5 App::cpanminus local::lib
I now have to fetch and install LaTeXML:
cpanm http://search.cpan.org/CPAN/authors/id/B/BR/BRMILLER/LaTeXML-0.8.0.tar.gz --force
Note that you will need the prerequisite system libraries installed onto the system - this approach doesn't provide copies of LibXML etc. as needed.
The results are really quite impressive - no links yet as they are behind our paywall but hopefully soon.