Form filelds show when not enough data to fill page

My client is printing mailing labels and they have space on one page for let's say 30 labels. If the data only contains 15 records then the other 15 will display the mailmerge fields rather then be blank. Is there a way to make them blank.

Thanks.

Anthony

Yes, if you will call MailMerge.DeleteFields method after mail merge execution, all remaining merge fields in the document will be deleted.