def text_image(text_path, font_path=None):

    grayscale = 'L'

    with open(text_path) as text_file:
        lines = tuple(l.rstrip() for l in text_file.readlines())

    large_font = 15
    font_path = font_path or 'font.ttf'
    try:
        font = PIL.ImageFont.truetype(font_path, size=large_font)
    except IOError:
        font = PIL.ImageFont.load_default()
        print('Could not use chosen font. Using default.')

    pt2px = lambda pt: int(round(pt * 96.0 / 72))
    max_width_line = max(lines, key=lambda s: font.getsize(s)[0])

    test_string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
    max_height = pt2px(font.getsize(test_string)[1])
    max_width = pt2px(font.getsize(max_width_line)[0])
    mw = font.getsize(max_width_line)[0]
    height = max_height * len(lines)
    width = int(round(max_width + 40))

    block = int(max_width/max_height)
    squareBlock = int(math.sqrt(len(lines)/block)) + 1

    image = PIL.Image.new(grayscale, (block * squareBlock* max_height, block * squareBlock* max_height), color=PIXEL_OFF)
    draw = PIL.ImageDraw.Draw(image)


    vertical_position = 20
    horizontal_position = 20
    line_spacing = int(round(max_height * 0.8))
    i = 0
    for e, line in enumerate(lines):
        draw.text((horizontal_position, vertical_position),
                  line, fill=PIXEL_ON, font=font)
        vertical_position += line_spacing

        if e % block == 0 and not e==0:
            i+=1
        if i == squareBlock:
            i = 0
            horizontal_position += mw - 20
            vertical_position = 20

    a, b, c, d = PIL.ImageOps.invert(image).getbbox()
    image = image.crop((0,0,c+20,d+20))

    return image