def watermark
      draw = Magick::Draw.new
      draw.annotate(@canvas, 0, 0, 0, 0, " #{@watermark}") do
        self.fill = 'white'
        text_antialias(false)
        self.font_weight = 100
        self.gravity = Magick::SouthEastGravity
        self.pointsize = 10
        self.undercolor = 'hsla(0,0,0,.5)'
      end
    end
def watermark
      draw = Magick::Draw.new
      draw.annotate(@canvas, 0, 0, 0, 0, " #{@watermark}") do
        self.fill = 'white'
        text_antialias(false)
        self.font_weight = 100
        self.gravity = Magick::SouthEastGravity
        self.pointsize = 10
        self.undercolor = 'hsla(0,0,0,.5)'
      end
    end
rubocop:enable Metrics/MethodLength