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July 24, 2019 14:35
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Takes a directory of images, create pages with 6 images per page.
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import os | |
import re | |
import sys | |
from subprocess import Popen | |
from PIL import Image | |
from pdf2image import convert_from_path | |
def pdfs_to_images(in_dir, out_dir): | |
for i, f in enumerate(os.listdir(in_dir)): | |
convert_from_path(os.path.join(in_dir, f), fmt='png', output_folder=out_dir, output_file=str(i)) | |
def images_to_tiles(in_dir, out_dir): | |
stacks = [] | |
files = os.listdir(in_dir) | |
files.sort(key=lambda s: int(s.split('_')[0]) * 1000 + int(s.split('-')[-1][:-4])) | |
for i in range(0, len(files) // 6 + 1): | |
stacks.append(files[i * 6:(i+1) * 6]) | |
max_width = 1700 // 2 | |
max_height = 2200 // 3 | |
for pn, s in enumerate(stacks): | |
page = Image.new("RGB", (1700, 2200), (255, 255, 255)) | |
for i, f in enumerate(s): | |
img = Image.open(os.path.join(out_dir, f)) | |
img.thumbnail((1700 // 2, 2200 // 3)) | |
x = (i % 2) * max_width | |
y = (i % 3) * max_height | |
w, h = img.size | |
page.paste(img, (x, y, x + w, y + h)) | |
page.save(os.path.join(out_dir, f"{pn}.png")) | |
def tiles_to_pdf(in_dir, out_dir): | |
p = Popen(f"convert $(ls -1 -v {in_dir}) {out_dir}/out.pdf") | |
p.communicate() | |
def main(args): | |
in_dir = args[2] | |
out_dir = args[3] | |
if args[1] == "1": | |
pdfs_to_images(in_dir, out_dir) | |
elif args[1] == "2": | |
images_to_tiles(in_dir, out_dir) | |
elif args[1] == "3": | |
tiles_to_pdf(in_dir, out_dir) | |
if __name__=='__main__': | |
main(sys.argv) |
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To convert to PDF:
convert $(ls -1 -v *.png) out.pdf