NCH Software - 1.50MB (Freeware)
Doxillion is a free document converter to convert pdf, docx, doc, pdf, rtf, html, xml, wpd, odt and txt document files.
With Doxillion Free Document Converter you can convert documents one at a time or batch convert many files at once. The app also lets you integrate Doxillion conversion options to your right click menu, in order to quickly convert documents to many frequently used formats.