搬运链接:https://www.cnblogs.com/tk091/p/4331327.html
import PIL
from PIL import ImageFont
from PIL import Image
from PIL import ImageDraw
#设置字体,如果没有,也可以不设置
font = ImageFont.truetype("/usr/share/fonts/truetype/ttf-dejavu/DejaVuSans.ttf",13)
#打开底版图片
imageFile = "base.png"
im1=Image.open(imageFile)
# 在图片上添加文字 1
draw = ImageDraw.Draw(im1)
draw.text((0, 0),"1",(255,255,0),font=font)
draw = ImageDraw.Draw(im1)
# 保存
im1.save("target.png")