I have a footer in a document which needs to be consistent across all pages of the document, except that it needs to show a logo on the last page.

I had tried using a conditional field code, but that didn't work consistently. If I updated the fields, it showed, but it wasn't visible when the document was opened, and the client needs this to always be visible.

I had to put a section break on the page before, but I don't like doing it this way. If the document gets edited, the section break could end up on the last page (or get deleted with the text) which would remove the logo from the last page; or if text is added after the section break, the logo could show up on more than just the last page.

Is there a way to do the conditional field code to show the logo properly? Or is there another way to do this that will be more reliable? I could anchor the logo with the body text, but that could also get deleted if the text is edited that contains the anchor.