The TopLeaf Plugin for XMetaL adds the publishing power of TopLeaf to the author/editing capabilities of XMetaL Author Enterprise. The result is a full featured out of the box DITA publishing tool.
Download the plugin installer.
First install TopLeaf. You can download an evaluation copy here.
You must also have the Enterprise edition of XMetaL Author version 6.0 or later installed.
Run the TopLeaf XMetaL Plugin installer and a TopLeaf PDF option will appear in the XMetaL Generate Output dialog.
A tutorial on installing and using the plugin can be viewed here.
For more information and usage instructions see the TopLeaf for DITA Guide.