Open source PDF editor
TeXstudio is a fully featured LaTeX editor
Prepress preparing tool and PDF editor
A fast DVI, EPS, and PDF to SVG converter
C++ Qt ORM (Object Relational Mapping) and ODM library
XML editor
Kile is a feature-rich LaTeX editor
A feature-rich environment for writing LaTeX documents on Windows
Simple XML editor and XSD viewer
SC is a C based meta/programming language/environment
DNG Camera Profile editor
Music score editor
2D Editor to manage garden or flat plan
The LaTeX Equation Editor
automata editor