Dear customer,
The following code is A4 size,
72 dpi (web) = 595 X 842 pixels
300 dpi (print) = 2480 X 3508 pixels
600 dpi (print) = 4960 X 7016 pixels
In RTE's setting, it can not auto break page,
but you can set the default width and margin for RTE,
for example:
Width="597px" EditorBodyStyle="margin:30px 20px 25px 20px;"
For the PDFPageStyle , it is not a designer property in IDE, it is just used by saving pdf file.