'Retrieves a page by number from this PDF file.
:param int pageNumber: The page number to retrieve
(pages begin at zero)
:return: the page at the index given by *pageNumber*
:rtype: :class:`PageObject<pdf.PageObject>`'

def getPage(self, pageNumber):

    pages = self.getObject(self._pages)
    return pages['/Kids'][pageNumber].getObject()
