[kusmi]

I also added a bit better contrast (if the title page of the pdf only contains text, the cover icon is hard to read), so the cover code now looks like this:

#-------- Create thumbnail --------
def make_cover(cover, out):
    """Takes a PIL image and returns the image transformed
    to be used as a thumbnail on the Iliad"""
    if cover:
        try:
            coversize = (69, 93)
            out = os.path.join(out, "cover.png")
            cover = ImageOps.grayscale(cover)
            cover.thumbnail(coversize, Image.ANTIALIAS)
            cover = ImageOps.autocontrast(cover,0)
            cover.save(out)
            return True
        except: return False
    else:
        return False

Again, many thanks for your great tool - it is really useful!!!