Final answer:
Footers are not always identical on every page of a document. There are features in word processing software that allow for varying footers based on the page number, chapter, or section. Document layout can include alternating footers for printed books, providing navigational aids within the text.
Step-by-step explanation:
Footers in a document do not always have to be identical on every page; therefore, the statement 'Footers are always identical on every page of a document' is false.
A footer can contain page numbers, which obviously change from one page to the next. In some document types, such as books or reports, footers may also include different information based on the page's content or the document's structure, such as chapter titles or section names. In desktop publishing and word processing software, there are features that allow the user to specify different footer (and header) content for different sections or pages. For example, the first page of a chapter may have a different footer than the subsequent pages, and back matter pages may have no footer at all or a simpler layout when compared to the rest of the document.
Furthermore, even within a single, multi-page chapter or section, it is not unusual to have alternating footers, reflecting the left and right-hand page layout in a printed document. This allows for elements such as the book's title or chapter name to appear on the left page, and the author's name or section title to appear on the right, enhancing the reader's navigation through the document.