Use GhostScript (https://stackoverflow.com/questions/3889850/how-can-i-use-ghostscript-to-convert-xps-to-pdf-or-xps-to-doc), select page using `displayed_page_number`
Use GhostScript (https://stackoverflow.com/questions/3889850/how-can-i-use-ghostscript-to-convert-xps-to-pdf-or-xps-to-doc), select page using
displayed_page_number