Я думаю, что вы имеете в виду это:
#!/usr/bin/env python3
from PIL import Image, ImageFont, ImageDraw
# Create a black canvas
canvas = Image.new('RGB', (400,200))
# Get a drawing context
draw = ImageDraw.Draw(canvas)
monospace20 = ImageFont.truetype("/Library/Fonts/Andale Mono.ttf",20)
monospace50 = ImageFont.truetype("/Library/Fonts/Andale Mono.ttf",50)
draw.text((10, 10), "Hello 20", font=monospace20, fill=(255,255,255))
draw.text((10, 90), "Hello 50", font=monospace50, fill=(255,255,255))
canvas.save('result.png')