Follow these steps if you have and ILP that does not have the room at the bottom of the last page for the Acknowledgement of document picture.  

On the menu bar, navigate and click on the Edit > Organize Pages.

Make sure you have this page downloaded and saved somewhere you can access quickly and easily. 

You want to select Insert > From file 

Select the file 'doc acknowledgement - letter head.pdf' and press open. 

Make sure Location has After selected, and the last page.