Free typesetting software

LaTeX ( or , to rhyme with "blech"), often stylized as '''''', is a software system for typesetting documents, based on the TeX typesetting system. LaTeX provides a high-level, descriptive markup language to use TeX more easily: TeX handles the document layout, while LaTeX handles the content side for document processing. Because the plain TeX formatting commands are elementary, it provides authors with ready-made commands for formatting and layout requirements such as chapter headings, footnotes, cross-references and bibliographies.

Scribus () is free and open-source desktop publishing (DTP) software available for most desktop operating systems. It is designed for layout, typesetting, and preparation of files for professional-quality image-setting equipment. Scribus can also create animated and interactive PDF presentations and forms. Example uses include writing newspapers, brochures, newsletters, posters, and books.

LilyPond is a computer program and file format for music engraving. One of LilyPond's major goals is to produce scores that are engraved with traditional layout rules, reflecting the era when scores were engraved by hand.

FreeType is a software development library used to render text onto bitmaps, and which provides support for other font-related operations. The FreeType font rasterization engine is free and open-source software with the source code dual-licensed under a BSD-like license and the GPL. FreeType supports a number of font formats, including TrueType, Type 1, and OpenType.

editing platform with special features for scientists

programmable Unicode-compliant smart-font technology and rendering system developed by SIL International as free software

troff (), short for "typesetter roff", is the major component of a document processing system developed by Bell Labs for the Unix operating system. troff and the related nroff were both developed from the original roff.

iText is a library for creating and manipulating PDF files in Java and .NET. It was created in 2000 and written by Bruno Lowagie. The source code was initially distributed as open source under the Mozilla Public License or the GNU Library General Public License open source licenses. However, as of version 5.0.0 (released Dec 7, 2009) and version 4.2.0 (released Jul 10, 2015) it is distributed under the GNU Affero General Public License version 3. A fork of the LGPL/MPL licensed version of iText is currently being actively maintained as the OpenPDF library on GitHub. iText is also available thr

Unix typesetting software used for man pages

FIGlet is a computer program that generates text banners, in a variety of typefaces, composed of letters made up of conglomerations of smaller ASCII characters (see ASCII art). The name derives from "Frank, Ian and Glenn's letters".

markup-based typesetting software

REVTeX, sometimes stylized as '''''', is a collection of LaTeX macros which is maintained and distributed by the American Physical Society with auxiliary files and a user support guide, as part of a "REVTeX toolbox." REVTeX is used to submit papers to journals published by the American Physical Society (APS), the American Institute of Physics (AIP), and the Optical Society of America (OSA). REVTeX is accepted by a few other technical publishers as well.