watermark images

watermark.py

from PIL import Image, ImageDraw, ImageFont

with Image.open("img.jpeg").convert("RGBA") as base:
    font_size = 100
    txt = Image.new("RGBA", base.size, (255, 255, 255, 0))
    fnt = ImageFont.truetype("/home/mar/.fonts/FiraMono-Regular.ttf", font_size)

    d = ImageDraw.Draw(txt)
    d.text(
        (10, base.size[1] - font_size - 10),
        "Watermark Text",
        font=fnt,
        fill=(255, 255, 255, 128),
    )

    out = Image.alpha_composite(base, txt)
    out = out.convert("RGB")
    out.save("img_w.jpeg", optimize=True)