Install htmldoc

I have moved to dreamhost recently and found that the download PDF document does not seem to work. I asked dreamhost why this is and they stated
"The modification was using the htmldoc tool for generating the pdf file previously, but as far as I see this tool is not installed on the your server now. Please contact your hosting company regarding the problem and ask them to install the tool."
But of course dreamhost cannot install 3rd party software. Does anyone know how to install htmldoc tool?