XSLT Development

We are looking at developing XSLT files. The inputs are XML and a PDF generated from the same XML. We also have a basic XSL file available. Remember, this is not the same XSL that was used to generate the above PDF from the XML quoted above. The task would be to use the XSL and develop a complete XSLT which can produce the above PDF from the XML mentioned above. The PDF, XML and XSL will be provided before start of the project.