Online Documentation
Saxon documentation for the current release is available online:
Downloads
Saxon documentation, together with source code and sample applications can also be downloaded, both for the current release and for earlier releases.
The same file saxon-resources9-5.zip covers all three Saxon editions
(Saxon-HE, Saxon-PE and Saxon-EE), and both platforms (Java and .NET).
The file also contains sample applications.
Further resources for developers can be found at http://dev.saxonica.com