code: def getPagePixmap(doc, pno, matrix = None, colorspace = csRGB,
                    clip = None, alpha = True):
      
      return doc[pno].getPixmap(matrix = matrix, colorspace = colorspace,
                            clip = clip, alpha = alpha)
docs: Create pixmap of document page by page number.
  
      Notes:
          Convenience function calling page.getPixmap.
      Args:
          pno: (int) page number
          matrix: Matrix for transformation (default: Identity).
          colorspace: (str/Colorspace) rgb, rgb, gray - case ignored, default csRGB.
          clip: (irect-like) restrict rendering to this area.
          alpha: (bool) include alpha channel