# File lib/pdf/reader/page_state.rb, line 123
      def move_text_position(x, y) # Td
        temp_matrix = Matrix[
          [1, 0, 0],
          [0, 1, 0],
          [x, y, 1]
        ]
        @text_matrix = @text_line_matrix = temp_matrix * @text_line_matrix
      end