convert .htm to .pdf

I'm running a simulation. After the simulation runs, I have a line of code to convert the .htm output into a .pdf file (see example 1). The command works but the .pdf file is poorly formatted. Parts of the top and bottom and all of the right hand side are missing and file doesn't start each graph on a new page.

I had a command line that used to work in Lion (see example 2) but it doesn't work in Mountain Lion (see error msg for example 2).

Example 1: command works but .pdf not formatted
/usr/sbin/cupsfilter -f "`htm_loc_file'.htm" -a landscape -o "`htm_loc_file'.pdf"

Example 2: command and error message (Mountain Lion)
/System/Library/Printers/Libraries/convert -f "`htm_loc_file'.htm" -a landscape -o "`htm_loc_file'.pdf"

Error msg
/bin/bash: /System/Library/Printers/Libraries/convert: No such file or directory

Just looked in /System/Library/Printers/Libraries and there is no convert file. On my wife's Snow Leopard it's there (actually a symlink) and points to /usr/sbin/cupsfilter which is also not in Mountain Lion.
Might have to find another way.

I've obviously installed something along the way because I have cupsfilter installed. Unfortunately, I have no idea where cupsfilter came from since I had imagined that it simply came with CUPS (evidently not).

So, it is possible to have cupsfilter but where it comes from is a mystery to me. I'll see if I can find this.

Thanks for the quick responses! The command line -- /usr/sbin/cupsfilter -f "`htm_loc_file'.htm" -a landscape -o "`htm_loc_file'.pdf" -- works on my version of Mountain Lion and it does convert an .htm file to a .pdf.

The problem is the formatting on the .pdf. Any thoughts?