I have 2 A4 sized images. I want to place 1st one as the backgroud image(or image under text) of the first page and 2nd one for the second page of the document. Also I need 2nd image appear on the 3rd page if document creator needs it to be more than 2 pages. Also I need to protect document so that people won’t be able to change the images and placement of the images. Is there a way to do this?