I am having issues with page breaks and I wasn't sure if it was resolved. In the design, you set the page break to Auto or you list a value. The number of rows is still pre-determined on where the page break would be within Interactive Viewer. It looks good in IV but when you try to print in Adobe and maybe HTML format, the following pages after the first page may end up like half pages. The page break number is based on row count of the data, not row count of what is displayed. Imagine a report where users implement a lot of groupings. Each group is a row on the page but it is not taken into account for Page Breaks.
The example would be in IV, it would say Page 1 of 3 pages. When printing, it maybe 10 pages. The report would page break naturally and also adds a page break for those 3 pages listed in IV.
iServer: v10 (Base Model)
BIRT Designer: 3.4.1
Similar Topic:
http://www.birt-exchange.org/org/forum/index.php/topic/14792-automatic-page-breaks/page__hl__adobe__fromsearch__1