ConTeXt

ConTeXt is a general-purpose document processor. Like LaTeX, it is derived from TeX. It is especially suited for structured documents, automated document production, very fine typography, and multilingual typesetting. It is based in part on the TeX typesetting system, and uses a document markup language for manuscript preparation. The typographical and automated capabilities of ConTeXt are extensive, including interfaces for handling microtypography, multiple footnotes and footnote classes, and manipulating OpenType fonts and features. Moreover, it offers extensive support for colors, backgrounds, hyperlinks, presentations, figure-text integration, and conditional compilation. It gives the user extensive control over formatting while making it easy to create new layouts and styles without learning the low-level TeX macro language.

While comparisons can be made between ConTeXt and LaTeX, the primary objectives of the two systems are distinct. From the onset, ConTeXt has been a typography and typesetting system designed to give users straightforward and consistent access to advanced typographical control, which is crucial for general-purpose typesetting. LaTeX's original vision, on the other hand, was to insulate the user from typographical decisions—an approach particularly useful for tasks such as submitting articles to a scientific journal. Although LaTeX has evolved from this original vision, ConTeXt's unified design prevents the package clashes often experienced with LaTeX.

ConTeXt provides a multilingual user interface with support for markup in English, Dutch, German, French, and Italian and support for output in many scripts including western European, eastern European, Arabic, Chinese, Japanese, and Korean. It also allows the user to use different TeX engines like pdfTeX, XeTeX, and LuaTeX without changing the user interface.

As its native drawing engine, ConTeXt integrates a superset of MetaPost called MetaFun, which allows users to draw page backgrounds and ornaments with MetaPost. MetaFun can also be used directly with MetaPost. ConTeXt also supports the use of other external drawing engines, like PGF/TikZ and PSTricks.

ConTeXt also provides a macro package for typesetting chemical structure diagrams with TeX called PPCHTeX, as well as many other modules. This package can also be used with plain TeX and LaTeX.

Originally entitled pragmatex, ConTeXt was given its name around 1996 by Hans Hagen from PRAGMA Advanced Document Engineering (Pragma ADE), a Netherlands-based company.