from PIL import Image, ImageDraw, ImageFont


def pic_add_num(image):
  my_font = ImageFont.truetype(r"C:\windows\Fonts\simsun.ttc", size=40)
  color = "red"
  width, height = image.size
  position = (width-40, 0)
  draw = ImageDraw.Draw(image)
  
  draw.text(position, "99", font=my_font, fill=color) 
  image.save("add_num.jpg")

if __name__ == "__main__":
  img = Image.open("universe.jpg")
  pic_add_num(img)