This file provides additional details that are pushed to the generated topics to replace the navigation titles and short descriptions embedded in the plug-in source code. Descriptions for individual extension points are pushed from the manually authored topics as necessary. Common processing The org.dita.base plug-in provides common extension points that are available to extend processing in all transformations that are supported by the DITA Open Toolkit. HTML-based output The org.dita.xhtml plug-in provides shared extension points that can be used to modify processing in HTML-based transformation types such as Eclipse help, HTML Help, TocJS, and XHTML. HTML5 In addition to the extension points provided by common processing and those shared by with other HTML-based transformations, the org.dita.html5 plug-in provides extension points that are specific to the HTML5 transformation. Eclipse Help (org.dita.eclipsehelp) Certain extension points are specific to the Eclipse Help transformation. HTML Help Certain extension points are specific to the HTML Help transformation. PDF (org.dita.pdf2) Certain extension points are specific to the PDF transformation (formerly known as “PDF2”). troff Certain extension points are specific to the troff transformation, which produces output for use with the troff viewer on Unix-style platforms, particularly for programs such as the man page viewer.