XSL Stylesheets for the DocBook 4 and earlier
These are the XSL stylesheets for DocBook XML and "Simplified" DocBook
DTDs. Generally, stylesheets do not know any namespace and you should
use these for DocBook 4 and earlier only.
The stylesheets transforms your DocBook document into (X)HTML,
Manpages, XSL-FO (for PDF) and a few other formats.
XSL is a standard W3C stylesheet language for both print and online
rendering. For more information about XSL, see the XSL page at the W3C.