Changing the orientation

I have a report designed in Crystal Reports 9.0. I just changed the orientation from landscape to Portrait. Now while exporting the output of the report it PDF format, the contents that was fitting in 3 pages is very well fitted in 2 pages, but it is still showing the 3rd page, which is blank.

How can I eliminate this 3rd page? The out of the report is converted into PDF is at run-time in my ASP.NET application. When i directly export it from Crystal Report application, it works fine.