GDML is an XML application language that describes exact page layout
information for graphics devices such as printers.
While HTML is great for describing pages viewed on screen, the same pages
when printed from a browser often vary significantly from one browser to
the next or even one version of the same browser to the next.
GDML provides a simple language for exacting control over font face, size,
and placement. In addition, GDML implements features which HTML does not
attempt to address, such as vector graphics.
GDMLView is a GDML viewer program in the same way that a web browser is a
viewer for HTML, to view, search and print GDML files.
GDMLPrt is a windows command line utility to print GDML for automated
applications, like batch files.