Maruku is a Markdown interpreter in Ruby. It features native export to HTML and PDF (via Latex). The output is really beautiful!

The core parser for the Bayeux document markup language, optimised for long-form documents. Generators are also provided for HTML, LaTeX and PanDoc

The GEM uses pdftex to combine all JPG files in a directory into a PDF document. It needs a properly installed LaTeX/pdflatex distribution.

Build LaTeX documents.

Bookmaker provides authors a free, ruby-based production toolchain for self-published paper and electronic books using the LaTeX document preparation system.

Use Branch Raker to maintain a build history for each branch. Originally created for LaTeX projects, but useful for anything that needs to be 'compiled'.

In the spririt of ledger, use text files to track your finances, but use Emacs org mode to create and edit transactions. Provides for ruby to fetch transaction files from financial institutions using watir-webdriver. Print nice reports with LaTeX, and more.

Book boilerplate to generate books as EPUB, MOBI, and PDF from simple Markdown text files. Or from HTML. Or from LaTeX. Or mixed.

WTeX converts blended source written both in Wiki and TeX into a valid LaTeX source. Also, binary 'wikitex' will prepare templates & Makefile for making the final PDF.

Kramdown extension for math-heavy document. It provides theorem environments, and easy references to those environments as well as to equations and section headers. Moreover, a bibliography section can be generated from a BibTeX file, and an flexible and easy mean of citing bibliographical entrie...

My default setup for writing text documents, utilizing pandoc, erb, markdown and latex

Scrapes a story off FF.net, converts it to Markdown, and turns it to PDF with LaTeX

* A gem that helps you describe latex documents in a ruby environment

A Ruby gem to create a skeleton for a LaTeX document.

Framework for rendering PDFs using LaTeX

A library that provides uncertainty and error propagation calculations for floats. It displays the appropriate number of digits when a number is outputted, can convert to latex using different formats.

hatena to Latex

Compile ruby into latex.

A LaTeX to HTML parser.

A library that aims to simplify the process of turning fragments of LaTeX into images and other formats.