Is it possible to move child table's last row data to next page on custom print format?

I created a custom print format for Material Request. I’ve added signature field below the item child table’s data. When, there are 34-35 row’s in item’s child table, signature filed’s shows in next page on printing. I want to move last 2 or 3 row’s from the child data to next page on printing. Is it possbile?