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.
All extensions required the correct use of an appropriate namespace in your input document.
To use this standard FOP extension, you need to add a namespace entry for
http://xml.apache.org/fop/extensions on the root element.
You can provide outlines inside the root object (but outside any
page-sequences or other formatting objects). Here's an example of an outline
It works similarly to a basic-link. There is also an external-destination
property, but it isn't supported currently. See the pdfoutline.fo file in
examples/fo/basic for a more complete example.
Continued-label (for table-header/-footer
Please see examples/fo/basic/contlabel.fo