Create input field and barcode in Word .dot field

Create single input field. At bottom center of page the inputted text is shown as a Barcode(code 128) with predefined prefix added to barcode Save button that saves file to specific folder with filename of barcode FO-040 123456.docx. Save button should not be visible on printed document. If no data is entered in input field input field, save button, barcode etc should not be visible on printed document. All changes to .dot file should not change the layout of the original file. See attached sample file