图片版权保护促销

from PIL import Image, ImageDraw, ImageFont

def add_watermark(input_image_path, watermark_text, output_image_path):
    photo = Image.open(input_image_path).convert("RGBA")
    width, height = photo.size
    
    # 创建一个透明的图层
    watermark = Image.new('RGBA', (width, height), (0, 0, 0, 0))
    draw = ImageDraw.Draw(watermark)
    
    # 设置水印字体和大小
    font = ImageFont.truetype("arial.ttf", 36)
    textwidth, textheight = draw.textsize(watermark_text, font)
    
    # 计算水印位置
    x = width - textwidth - 10
    y = height - textheight - 10
    
    # 添加水印
    draw.text((x, y), watermark_text, font=font, fill=(255, 255, 255, 128))
    
    # 合并图片和水印
    watermarked_photo = Image.alpha_composite(photo, watermark)
    
    # 保存结果
    watermarked_photo.convert("RGB").save(output_image_path, "JPEG")

# 使用示例
add_watermark("input.jpg", "Copyright © 2023", "output.jpg")