By "extension", we mean any data that can be placed in the input XML document that is not addressed by the XSL-FO standard. By having a mechanism for supporting extensions, FOP is able to add features that are not covered in the specification.
The extensions documented here are included with FOP, and are automatically available to you. If you wish to add an extension of your own to FOP, please see the Developers' Extension Page.
Please see the SVG documentation for more details.
By convention, FO extensions in FOP use the "fox" namespace prefix.
To use any of the FO extensions, add a namespace entry for
http://xml.apache.org/fop/extensions
to the root element:
In previous versions of Apache FOP there was a fox:outline
element
which was used to create outlines in PDF files. The redesigned code makes use
of the new bookmark feature defined in the latest XSL 1.1 working draft.
This extension element hasn't been reimplemented for the redesigned code, yet.
This extension element hasn't been reimplemented for the redesigned code, yet.