When I set the page size to something larger than 14,400
For example when I use: doc.page_start(612, 72000);
which should give me a page size of 8.5 x 1000 but instead I
get a PDF 8.5 x 200.
I tried changing the verion to PDF 1.6 via a profile but
that had no effect.
In reading the PDF spec App, I see that a UserUnits was added
to page dictionary in PDF 1.6 that enables larger page sizes.
Is UserUnits what I should use to get over the 200 inch limit?