DITA-OT transformations (output formats) DITA Open Toolkit ships with several core transformations that convert DITA content to different output formats. Additional formats are available from the plug-in registry at dita-ot.org/plugins. Tip: For information on how to install other formats, see Adding and removing plug-ins. PDFThe pdf transformation generates output in Portable Document Format.HTML5The html5 transformation generates HTML5 output and a table of contents (TOC) file.Eclipse helpThe eclipsehelp transformation generates XHTML output, CSS files, and the control files that are needed for Eclipse help.HTML HelpThe htmlhelp transformation generates HTML output, CSS files, and the control files that are needed to produce a Microsoft Compiled HTML Help (.chm) file.Generating Markdown outputAlong with Markdown input, DITA-OT provides three transformation types to convert DITA content to Markdown, including the original syntax, GitHub-Flavored Markdown, and GitBook.Normalized DITAThe dita transformation generates normalized topics and maps from DITA input. The normalized output includes the results of DITA Open Toolkit pre-processing operations, which resolve map references, keys, content references, code references and push metadata back and forth between maps and topics.XHTMLThe xhtml transformation generates XHTML output and a table of contents (TOC) file. This was the first transformation created for DITA Open Toolkit, and originally served as the basis for all HTML-based transformations.