aiksaurus : A thesaurus lib, tool and database ( http://sourceforge.net/projects/aiksaurus )
evince : Simple document viewer for GNOME ( https://wiki.gnome.org/Apps/Evince )
mupdf : a lightweight PDF viewer and toolkit written in portable C ( http://mupdf.com/ )
rarian : A documentation metadata library ( http://rarian.freedesktop.org/ )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a gentoo-playground
For Paludis use this rsync : rsync://gentoo.zugaina.org/gentoo-playground-portage
If you have a problem : ycarus(-at-)zugaina.org