xmlroff is a fast, multilingual, multi-platform XSL formatter that transforms XSL-FO (or any XML with a stylesheet) into PDF or PostScript. New development is at http://xmlroff.org. This SF project is inactive.
gfontview is a Font Viewer for outline fonts (PostScript Type 1 and
TrueType). It will display all fonts present in the chosen directory
in a list, with a preview of the font in the main window.