Print Footer Window of PO Form at end of Last Page of PDF Forms(Adobe)

Hi,

I am trying to print PO form using PDF form which includes multiple line items. At the end of last page I am trying to print the footer window that contains Comments and Signature.

Right now my Footer Window is being printed immediately after the end of line items.

I have included the Comments text box and image inside a Sub Form.

Please let me know how to print the Footer window at the end of the page instead of printing immediately after the line items.

Thanks,

Rekha