def new_page(mediabox = [0, 0, 612.0, 792.0], _location = -1)
      p = PDFWriter.new(mediabox)
      insert(-1, p)
      p
    end
def new_page(mediabox = [0, 0, 612.0, 792.0], _location = -1)
      p = PDFWriter.new(mediabox)
      insert(-1, p)
      p
    end
adds a new page to the end of the PDF object.

 returns the new page object.

 unless the media box is specified, it defaults to US Letter: [0, 0, 612.0, 792.0]