Created
September 11, 2013 15:11
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Basic example of how simple it is to add (slightly) less obvious watermarks to EPUB files with pyepub library and stepic
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| #! /usr/bin/env python | |
| import os | |
| from pyepub import EPUB # see https://github.com/gabalese/pyepub | |
| from StringIO import StringIO | |
| from PIL import Image | |
| import stepic | |
| epub = EPUB("startepub.epub","a") | |
| epub_images = [x["href"] for x in epub.info["manifest"] if x["mimetype"] == "image/jpeg"] | |
| container_img = os.path.join(epub.root_folder, epub_images[0]) | |
| flo = StringIO(epub.read(container_img)) | |
| epub._delete(container_img) | |
| img = Image.open(flo) | |
| im2 = stepic.encode(img, 'Hi, this is a plain text string! You can encode me or whatever') | |
| flo_out = StringIO() | |
| im2.save(flo_out, format="jpeg") | |
| epub.writestr(container_img, flo_out.getvalue()) | |
| epub.writetodisk("new.epub") |
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another method, if interested: https://gist.github.com/broderboy/c2cad83a4855e5454bb3