图片批量添加水印

批量给指定文件夹内图片添加水印，并且能提取图片本身信息或指定信息进行添加，字体大小适配图片
减少简单的ps操作,同时使文字显现出蓝白的立体效果

from PIL import Image, ImageDraw, ImageFont
import glob
import re

files = glob.glob('./*.jpg')
for file in files:
    img = Image.open(file)
    p = re.compile('[\u4e00-\u9fa5]+')#匹配汉字
    width = img.size[0]
    height = img.size[1]
    myfont = ImageFont.truetype('arial.ttf', width//30+2)
    myfont2 = ImageFont.truetype('arial.ttf', width // 30) 
    myfont3 = ImageFont.truetype('arial.ttf', width // 30+1)

    draw = ImageDraw.Draw(img)

    text = "XXX"
    text_width = myfont3.getsize(text)
    text_width2 = myfont2.getsize(text)
    ext_coordinate = int((width-text_width[0])/2), int(height-text_width[1])
    ext_coordinate2 = int((width - text_width2[0]) / 2), int(height - text_width[1])
    draw.text(ext_coordinate, text, fill=(0, 138, 184), font=myfont3) #蓝色
    draw.text(ext_coordinate2, text, fill=(255, 255, 255), font=myfont2)

    str =  "XXX:"+p.search(file).group()#读取汉字
    text_width = myfont.getsize(str)
    text_width2 = myfont2.getsize(str)
    ext_coordinate = int((width-text_width[0])/2), int(height-text_width[1]*2)
    ext_coordinate2 = int((width - text_width2[0]) / 2), int(height - text_width[1] * 2)
    draw.text(ext_coordinate,str,fill=(0,138,184),font=myfont)
    draw.text(ext_coordinate2, str, fill=(255, 255, 255), font=myfont2)

    text = "XXXX"
    text_width = myfont.getsize(text)
    text_width2 = myfont2.getsize(text)
    ext_coordinate = int((width-text_width[0])/2), int(height-text_width[1]*3)
    ext_coordinate2 = int((width - text_width2[0]) / 2), int(height - text_width[1] * 3)
    draw.text(ext_coordinate,text,fill=(0,138,184),font=myfont)
    draw.text(ext_coordinate2, text, fill=(255, 255, 255), font=myfont2)

    img.show()
    #img.save(file)