The Page Properties section allows the setting of page properties. Paper format is selected from Paper kind list and is set with the Page.PaperKind property. In order to set arbitrary page size you should select Custom in Paper kind combo box and set the value to the Page size field.
It is possible to set landscape or portrait page orientation in the Orientation section.
Headlines are used to output page numbers. It is possible to set display mode and text alignment of headliners in the Page Number section.
PivotTable Wizard Page Properties PaperKind Orientation Headlines