After binding crystal report, two div containers are creating and one of them having large height.So after footer a large space with scrollbar is generating.Its coming on all pages which has crystal report in it. I have checked in master page,there no controls after footer.Its looks like related to crystal viewer because the id name contains crystal report viewer name(CRVAdvAuditTrail) Im attaching screenshot.Im using SAP crystal report in 2010 VS.
</form>
<div id="ctl00_CPH_Body_CRVAdvAuditTrail__UI_mb" style="background-color: rgb(136, 136, 136); position: absolute; opacity: 0.3; display: block; z-index: 998; visibility: hidden; width: 1170px; height: 865px; left: 264px; top: 468.5px;"></div>
<div id="ctl00_CPH_Body_CRVAdvAuditTrail__UI_bc" style="display: block; visibility: hidden; position: absolute; width: 0px; height: 0px; left: 0px; top: 0px;"></div>
</body>
