Sun or Apple Java™ runtime 1.4 or above.
SVG and MathML support requires using Java™ 1.5+.
50Mb of free disk space.
XMLmind XSL-FO Converter is officially supported on Windows XP/Vista/7, on Linux 2.6 and on Mac OS X 10.4 (Tiger), 10.5 (Leopard), 10.6 (Snow Leopard). It is possible to use it on other Java™ 1.4+ platforms (e.g. Solaris), but without support from XMLmind.