Hi,

If you don't need these elements to scroll together with diagram contents, you could implement them in outer Xaml code:

<StackPanel>
  <header here />
  <ScrollViewer>
    <Diagram/>
  </ScrollViewer>
  <footer here />
</StackPanel> 

If they should scroll, you could implement them using nodes inside the diagram (e.g. TableNode or TemplatedNode), with Locked and IgnoreLayout properties set to true.

I hope that helps,
Stoyan

This will work for PDF only if you export to a single page using PdfExporter.PageSize = DiagramSize. There's no way to make same header and legend nodes appear on every page if exporting to multiple pages. You might try paginating the diagram yourself, creating a DiagramPage for each A4-sized part, adding header and legend nodes to each page, and exporting using Export(DiagramDocument) overload. For next release we could implement some method to let you adorn the WPF Visual objects generated by exporter for each page with your own graphics for headers, legends, watermarks, etc.

I hope that helps,
Stoyan