I know there is something like rtf2latex. Latex has no problems to output pdf and other formats in high quality. And this should be easily scriptable, but I do not know, wether this is within your performance constraints.

And it came to pass that in time the Great God Om spake unto Brutha, the Chosen One: "Psst!"
(Terry Pratchett, Small Gods)

In reply to Re: Converting RTF documents to PDF format by Brutha
in thread Converting RTF documents to PDF format by mlh2003

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