Image::drawWatermark

public function drawWatermark(ImageWatermark $watermark)
{
	if($watermark instanceof ImageTextWatermark)
	{
		return $this->engine->drawTextWatermark($watermark);
	}
	if($watermark instanceof ImageImageWatermark)
	{
		return $this->engine->drawImageWatermark($watermark);
	}
	return false;
}