First off it seems that all sizes are in Pixels. So I went ahead and multiplied 96 pixels per inch by the dimensions of a Landscape Letter stock and it seems pretty close. But is this a safe assumption?
1. By setting the RadFixedDocumentEditor.SectionProperties.PageSize
2. By setting the RadFixedDocumentEditor.SectionProperties.PageMargins
3. After I have inserted the Table, I then loop through the pages and insert at specific positions and seem to be able to get header and footers in there like that.
It seems my only remaining questions here are: Is my assumption on Pixels as the basic unit of size correction? And am I doing this right based on my comments above?