When generating documents, these documents are dynamic. You cannot know if the document will have 1, 2 or more pages.
If you want to display text or a table at the bottom of the last page you cannot do this with a footer as a footer will display on each page.
With some clever setup, you can achieve this via a TextBox.
- Add the Textbox and check that it is anchored to the last Paragraph in the DOCX file
- Set the size of the TextBox to exactly match the height of the text
- Position the TextBox to the bottom of the page (and center the TextBox if required)
All of this is explained step-by-step in the following video: