Font Manager
Preview, Compare and Manage Fonts
Font Sampler
Create a PDF sample sheet from a directory of fonts

Fotowall
Photo collection creativity tool
Specimen Font Previewer
Preview and compare fonts
Kile
(La)TeX development environment
LaTeXila
Edit LaTeX documents

NovProg
Track your novel progress
TeXstudio
LaTeX development environment

Scribus
Page Layout and Publication

Scribus NG
Page Layout and Publication

Saaghar
A Persian poetry software

GNOME LaTeX
Edit LaTeX documents
PDF Tricks
A simple, efficient app for small manipulation of PDF files. Compress, split, merge and convert PDF.