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Create text watermarks with PIL PDF Print E-mail

An interesting Python script from Planet Python for creating text watermarks in image files.

from PIL import Image, ImageDraw, ImageFont
from math import atan, degrees
import sys
import os
def main(filename, text, outfilename):
    img ="RGB")
    watermark ="RGBA", (img.size[0], img.size[1]))
    draw = ImageDraw.ImageDraw(watermark, "RGBA")
    size = 0
    while True:
        size += 1
        nextfont = ImageFont.truetype(FONT, size)
        nexttextwidth, nexttextheight = nextfont.getsize(text)
        if nexttextwidth+nexttextheight/3 > watermark.size[0]:
        font = nextfont
        textwidth, textheight = nexttextwidth, nexttextheight
    #           (watermark.size[1]-textheight)/2), text) #Höhe = Mitte
               (watermark.size[1]-textheight)), text)
    #Diagonal Zeichnen:
    #watermark = watermark.rotate(degrees(atan(float(img.size[1])/img.size[0])),
    mask = watermark.convert("L").point(lambda x: min(x, 55))
    img.paste(watermark, None, watermark)
if __name__ == "__main__":
    if len(sys.argv) != 4:
        sys.exit("Usage: %s <input-image> <text> <output-image>"
                 % os.path.basename(sys.argv[0]))
Last Updated ( Tuesday, 23 June 2009 )
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