Insert a section break (next page type) at the bottom of the second-last page. If there's a page break already there, delete it.<br>
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Go to the last page and View-Header and Footer and hit down arrow key to go to footer. If the words "Same as Previous" appear at the upper-left of the footer outline box, hit the button with the same name on the header/footer toolbar to remove that property. Type what you want into the footer.