I see two cases here...not sure which one applies so I will give you
2 answer:
1- You input data is a PDF which has pre-printed background and data on it. You wish to print only the data out on a physical pre-printed paper.
Solution= Simply extract the data on your form page without putting the background of you forms pages to use the original PDF input data.
2- You have data that is not PDF and you want to use a PDF as background but only to be a ble to place your data in the right position so it fits properly on the pre-printed paper.
Solution= Add your PDF as an image in the background and put a condition on that image based on the PressTalk variable
&printerMode