General extension points These extension points enable you to extend the DITA-OT. You can add Ant targets or imports; add a Java library to the classpath parameter; add a new transformation type; extend a catalog file; add new diagnostic messages, and more.
ant.import
Adds an Ant import to the main Ant build file.
dita.conductor.lib.import
Adds a Java library to the DITA-OT classpath.
dita.conductor.target
Adds an Ant import to the main Ant build file.

This extension point is deprecated; use dita.conductor.target.relative or ant.import instead.

dita.conductor.target.relative
Adds an Ant import to the main Ant build file.

As of DITA-OT 3.0, the ant.import extension point can be used instead.

dita.conductor.transtype.check
Adds a new value to the list of valid transformation types.
dita.specialization.catalog
Adds the content of a catalog file to the main DITA-OT catalog file. This extension point is deprecated; use dita.specialization.catalog.relative instead.
dita.specialization.catalog.relative
Adds the content of a catalog file to the main DITA-OT catalog file.
dita.transtype.print
Defines a transformation as a print type.What does this actually do? Does this interact with using the deprecated print attribute?
dita.xsl.messages
Adds new diagnostic messages to the DITA-OT.
org.dita.pdf2.catalog.relative
Adds the content of a catalog file to the main catalog file for the PDF plug-in.