Hi,

><fo:root xmlns:fo="http://www.w3.org/1999/XSL/Format">
><provider>123456789012345678</provider>
><fo:layout-master-set>
>...
>Now it still generates the PDF but is there a better/proper
>way of being able to pass the extra data I need in provider
>without causing the error. I now it's not in the FO namespace
>but I need another process to grab the XML and do something
>else with it but FOP still has to be able to produce the PDF
>with the same file.

How about a processing instruction <?provider 123456789012345678?>?

Jarno