DTD Generation

structural specialization
Defines new types of structured information, such as new topic types or new map types.
shell DTD
Defines the set of structural modules, domain modules, and constraints modules that a map or topic can use.
domain attribute specialization
Defines new conditional processing attributes. Both structural specialization and shell DTD generation also include the option for domain attribute specialization.

Style plug-in generation

PDF style plug-in
Defines a new DITA-OT transformation type based on the built-in PDF conversion.
Example plug-ins: