Hi @deepthi5,
You might want to consider reducing the number of table rows printed in a PDF. You can adjust the max_rows_per_table setting in limits.conf to do this. See:
http://docs.splunk.com/Documentation/Splunk/6.3.0/Report/GeneratePDFsofyourreportsanddashboards#Addi...
Hope this helps,
@frobinson_splunk