# File lib/pdf/reader/page_state.rb, line 137
      def set_text_matrix_and_text_line_matrix(a, b, c, d, e, f) # Tm
        @text_matrix = @text_line_matrix = Matrix[
          [a, b, 0],
          [c, d, 0],
          [e, f, 1]
        ]
      end