Since version 1.1 it supports page templates and besides pk fonts also TrueType, OpenType, and PostScript Type 1 fonts.
Currently the most simple viewer is the viewer for Linux. Its user interface consists just of a few key strokes and mouse movements as described in the man page. All the viewers use the same backend and very similar OpenGL code for the rendering. If you want to investigate the sources or want to implement your own viewer, the Linux viewer is a good starting point.
A book is in preparation. Documented sources will become available with the printed documentation.
There is no special installation required, just copy the executable to a directory on your search path. You may want to associate the viewer with .hnt files.
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