A script I use to export PnP file into JPG for Tabletop Simulator import

pnp2tts.py

#!/usr/bin/env python
"""Script for joining PDF into image output.

Prerequisite:

    # This takes a bit of time!
    brew install poppler
    pipenv install pillow pdf2image

I use this for converting PnP pdf into image to be uploaded to TTS.
"""

import os
import sys

from pdf2image import convert_from_path
from PIL import Image


IMG_FOLDER = 'genfile'
# How many last pages to miss from PDF
PAGES_TRUNCATE = 2
MARGIN_TOP = 50
MARGIN_LEFT = 100
# Only print every mod 2 pages
EVERY_OTHER_PAGE = 2
# TTS only allows maximum height of (10, 7)
MAX_PAGES = 3  # Allow 3 pages since we can align horizontally
START_PAGE = 0


def convert_pages_to_image(pdf_file, pages_truncate=PAGES_TRUNCATE):
    print(f"Reading pdf file: {pdf_file}")
    pages = convert_from_path(pdf_file)

    try:
        os.mkdir(IMG_FOLDER)
    except OSError:
        pass

    imgs = []
    for i, page in enumerate(pages[START_PAGE:-pages_truncate]):
        if (i % EVERY_OTHER_PAGE) != 0:
            continue
        img_name = '{}/out_{}.jpg'.format(IMG_FOLDER, i)
        print(f"Writing tmp image: {img_name}")
        page.save(img_name, 'JPEG')
        imgs.append(img_name)
    return imgs


def join_images(img_files, out_prefix):
    images = [Image.open(x) for x in img_files]
    widths, heights = zip(*(i.size for i in images))

    # Remember to exclude the margin!
    each_img_len = min(MAX_PAGES, len(img_files))
    total_width = (widths[0] - (MARGIN_LEFT*2)) * each_img_len
    total_height = heights[0] - (MARGIN_TOP*2)

    new_im = Image.new('RGB', (total_width, total_height))
    new_im_idx = 0
    new_im_img_count = 0
    x_offset = 0

    for im in images:
        w0, h0 = im.size
        cropped_img = im.crop((
            MARGIN_LEFT, MARGIN_TOP,
            w0-MARGIN_LEFT, h0-MARGIN_TOP
        ))
        w, h = cropped_img.size
        assert w + MARGIN_LEFT * 2 == w0, f"Image cropped {w0} -> {w}"
        new_im.paste(cropped_img, (x_offset, 0))
        x_offset += w
        new_im_img_count += 1

        # Now decide pagination
        if new_im_img_count > MAX_PAGES:
            out_img_name = f"{out_prefix}_{new_im_idx}.jpg"
            print(f"Saving to: {out_img_name}")
            new_im.save(out_img_name)
            x_offset = 0
            new_im_img_count = 0
            new_im_idx += 1

    out_img_name = f"{out_prefix}_{new_im_idx}.jpg"
    print(f"Saving final img to: {out_img_name}")
    new_im.save(out_img_name)


if __name__ == "__main__":
    pdf_file = sys.argv[1]
    imgs = convert_pages_to_image(pdf_file)
    out_img_prefix = 'added'
    join_images(imgs, out_img_prefix)