Lots of TeX implementations (pdflatex, xetex, luatex &c.), or if one can make a .dvi, post-process it w/ dvips and ghostscript (or Acrobat Distiller) or dvipdfmx (or the new xdvipdfmx).
You're still better off making a .rtf directly from the .tex source, or bringing the .tex source directly into a word processor and applying the formatting there using standard search-replace techniques.
William
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