How can I have different footers on different pages
Use section breaks.
You can use section breaks to change the layout or formatting of a page or pages in your document. For example, you can lay out part of a single-column page as two columns. You can separate the chapters in your document so that the page numbering for each chapter begins at 1.
You can also create a different header or footer for a section of your document.
Source Insert a section break.