DITA Open Toolkit Overview
The DITA Open Toolkit (DITA-OT) is an open source publishing engine that converts DITA content into multiple output formats, like PDF or HTML. Output formats are also referred to as transformation types or output types.
Out of the box, DITA-OT enables you to publish to multiple output formats. Common output formats are HTML5 and PDF, although many other output formats are available. The available formats depend on the toolkit version and its plugins. Learn more at dita-ot.org.
By default, DITA-OT enables you to publish content with simple styling applied. You can expand the publishing capabilities by adding custom DITA-OT plugins, custom fonts, or PDF Formatters such as Antenna House.
Where to Learn about DITA-OT
The top three resources we recommend for those who want to learn how to customize DITA-OT, and especially how to customize DITA-OT plugins, are:
Official DITA-OT web site: dita-ot.org
Google group: DITA-OT Users
Slack group: dita-ot.slack.com
A great way to create a simple custom plugin is by using the free PDF Plugin Generator available at dita-generator.elovirta.com.