[ NoAccessorMethod ]
public int n_pages { get; set; }

The number of pages in the document.

This must be set to a positive number before the rendering starts. It may be set in a begin_print signal handler.

Note that the page numbers passed to the request_page_setup and draw_page signals are 0-based, i.e. if the user chooses to print all pages, the last draw_page signal will be for page n_pages - 1.