From 2dd39bd484aec287ab3fd69df90ac2d49bd5ba5b Mon Sep 17 00:00:00 2001 From: Christian Heller Date: Tue, 26 Sep 2023 15:59:40 +0200 Subject: [PATCH] Remove bookmaker.py as it now has its own repo. --- bookmaker.py | 515 --------------------------------------------------- 1 file changed, 515 deletions(-) delete mode 100755 bookmaker.py diff --git a/bookmaker.py b/bookmaker.py deleted file mode 100755 index 431587e..0000000 --- a/bookmaker.py +++ /dev/null @@ -1,515 +0,0 @@ -#!/usr/bin/env python3 -""" -bookmaker.py is a helper for optimizing PDFs for the production of small self-printed, self-bound physical books. Towards this goal it offers various PDF manipulation options that may also be used indepéndently and for other purposes. -""" -help_epilogue = """ -OVERVIEW OF TARGET USAGE: - -By cropping with -c and studying the results, define the areas of the input PDF's pages you want visible. Then, with--nup4, map those areas onto 4 input pages per 1 output page, arranged in such a way that double-sided print-out of those output pages can be cut, folded, and bound (helped by addition of stencils for small incisions to carry rubber bands or the like) into a small A6 book. Each unit of 8 pages from the input PDF is mapped by --nup4 onto two pages representing two sides of a (no-tumble-duplex-printed) A4 paper: - - +-------=-------+ __________________ - (front) (back) | 4 | 1 = 2 | 3 | 4 /=|===|============ -+-------=-------+ ==> +-------=-------+ ===> _/|\_ v >=|===|============ -| 4 | 1 = 2 | 3 | / | \_ \=|===|============ -|-------=-------| +-------=-------+ 1-> | 2 | 3 | | \ / <- cut out! -| 8 | 5 = 6 | 7 | ==> | 8 | 5 = 6 | 7 | | _/ \_ | | \ | -+-------=-------+ +-------=-------+ |/ \| | \| (p. 5) - -To turn this paper into a small 8-pages book, first cut it into two A5 papers along its horizontal middle. Fold both A5's by their vertical middles, with pages 2-3 and 7-6 on the folds' insides. You now have two 4-page A6 "books" of pages 1-4 and pages 5-8. Fold both closed and (counter-intuitively) stack the second one on top of the first one (creating a temporary page order of 5,6,7,8,1,2,3,4). This reveals a small stencil on the top left of page 5 – cut it out, with all other pages folded and aligned under it, creating a small notch in the upper "inner" corner of all pages. Turn around the stack to find a mirror stencil on the bottom and repeat the cutting. Each page now has cuts on top and bottom of its inner margins into which a rubber band can be hooked, or through which a string may be looped and tied, to bind the page's inner margins into a kind of book spine. You may now swap the order of the 4-page books back into a proper final page order (of 1,2,3,4,5,6,7,8) and repeat the whole process for each further --nup4 output paper. - -COMMAND EXAMPLES: - -Concatenate two PDFs A.pdf and B.pdf to COMBINED.pdf: - bookmaker.py --input_file A.pdf --input_file B.pdf --output_file COMBINED.pdf - -Produce OUTPUT.pdf containing all pages of (inclusive) page number range 3-7 from INPUT.pdf: - bookmaker.py -i INPUT.pdf --page_range 3-7 -o OUTPUT.pdf - -Produce COMBINED.pdf from A.pdf's first 7 pages, B.pdf's pages except its first two, and all pages of C.pdf: - bookmaker.py -i A.pdf -p start-7 -i B.pdf -p 3-end -i C.pdf -o COMBINED.pdf - -Crop each page 5cm from the left, 10cm from the bottom, 2cm from the right, and 0cm from the top: - bookmaker.py -i INPUT.pdf -o OUTPUT.pdf --crops "5,10,2,0" - -Include all pages from INPUT.pdf, but only crop pages 10-20 by 5cm each from bottom and top: - bookmaker.py -i INPUT.pdf -c "10-20:0,5,0,5" -o OUTPUT.pdf - -Same crops for pages 10-20, but also crop all pages 30 and later by 3cm each from left and right: - bookmaker.py -i INPUT.pdf -o OUTPUT.pdf -c "10-20:0,5,0,5" -c "30-end:3,0,3,0" - -Rotate by 90° pages 3, 5, 7; rotate page 7 once more by 90% (i.e. 180° in total): - bookmaker.py -i INPUT.pdf -o OUTPUT.pdf --rotate 3 -r 5 -r 7 -r 7 - -Initially declare 5cm crop from the left and 1cm crop from right, but alternate direction between even and odd pages: - bookmaker.py -i INPUT.pdf -o OUTPUT.pdf -c "5,0,1,0" --symmetry - -Quarter each OUTPUT.pdf page to carry 4 pages from INPUT.pdf, draw stencils into inner margins for cuts to carry binding strings: - bookmaker.py -i INPUT.pdf -o OUTPUT.pdf --nup4 - -Same --nup4, but define a printable-region margin of 1.3cm to limit the space for the INPUT.pdf pages in OUTPUT.pdf page quarters: - bookmaker.py -i INPUT.pdf -o OUTPUT.pdf -n --print_margin 1.3 - -Same --nup4, but draw lines marking printable-region margins, page quarters, spine margins: - bookmaker.py -i INPUT.pdf -o OUTPUT.pdf -n --analyze - -FURTHER NOTES: - -For arguments like -p, page numbers are assumed to start with 1 (not 0, which is treated as an invalid page number value). - -The target page shape so far is assumed to be A4 in portrait orientation; bookmaker.py normalizes all pages to this format before applying crops, and removes any source PDF /Rotate commands (for their production of landscape orientations). -""" -import argparse -import io -import os -import sys - -def handled_error_exit(msg): - print(f"ERROR: {msg}") - sys.exit(1) - -try: - import pypdf -except ImportError: - handled_error_exit("Can't run at all without pypdf installed.") - -# some general paper geometry constants -POINTS_PER_CM = 10 * 72 / 25.4 -A4_WIDTH = 21 * POINTS_PER_CM -A4_HEIGHT = 29.7 * POINTS_PER_CM -A4 = (A4_WIDTH, A4_HEIGHT) - -# constants specifically for --nup4 -A4_HALF_WIDTH = A4_WIDTH / 2 -A4_HALF_HEIGHT = A4_HEIGHT / 2 -CUT_DEPTH = 1.95 * POINTS_PER_CM -CUT_WIDTH = 1.05 * POINTS_PER_CM -MIDDLE_POINT_DEPTH = 0.4 * POINTS_PER_CM -INNER_SPINE_MARGIN_PER_PAGE = 1 * POINTS_PER_CM -QUARTER_SCALE_FACTOR = 0.5 -PAGE_ORDER_FOR_NUP4 = (3,0,7,4,1,2,5,6) - - -class PageCrop: - - def __init__(self, left_cm=0, bottom_cm=0, right_cm=0, top_cm=0): - self.left_cm = left_cm - self.bottom_cm = bottom_cm - self.right_cm = right_cm - self.top_cm = top_cm - self.left = float(self.left_cm) * POINTS_PER_CM - self.bottom = float(self.bottom_cm) * POINTS_PER_CM - self.right = float(self.right_cm) * POINTS_PER_CM - self.top = float(self.top_cm) * POINTS_PER_CM - zoom_horizontal = A4_WIDTH / (A4_WIDTH - self.left - self.right) - zoom_vertical = A4_HEIGHT / (A4_HEIGHT - self.bottom - self.top) - if (zoom_horizontal > 1 and zoom_vertical < 1) or (zoom_horizontal < 1 and zoom_vertical > 1): - raise HandledException("-c: crops would create opposing zoom directions") - elif zoom_horizontal + zoom_vertical > 2: - self.zoom = min(zoom_horizontal, zoom_vertical) - else: - self.zoom = max(zoom_horizontal, zoom_vertical) - - def __str__(self): - return str(vars(self)) - - @property - def format_in_cm(self): - return f"left {self.left_cm}cm, bottom {self.bottom_cm}cm, right {self.right_cm}cm, top {self.top_cm}cm" - - @property - def remaining_width(self): - return A4_WIDTH - self.left - self.right - - @property - def remaining_height(self): - return A4_HEIGHT - self.bottom - self.top - - def give_mirror(self): - return PageCrop(left_cm=self.right_cm, bottom_cm=self.bottom_cm, right_cm=self.left_cm, top_cm=self.top_cm) - - -class Nup4Geometry: - - def __init__(self, margin_cm): - self.margin = margin_cm * POINTS_PER_CM - self.shrink_for_margin = (A4_WIDTH - 2 * self.margin)/A4_WIDTH - # NB: We define spine size un-shrunk, but .shrink_for_spine is used with values shrunk for the margin, which we undo here. - spine_part_of_page = (INNER_SPINE_MARGIN_PER_PAGE / A4_HALF_WIDTH) / self.shrink_for_margin - self.shrink_for_spine = 1 - spine_part_of_page - - -class HandledException(Exception): - pass - - -def parse_args(): - parser = argparse.ArgumentParser(description=__doc__, epilog=help_epilogue, formatter_class=argparse.RawDescriptionHelpFormatter) - parser.add_argument("-i", "--input_file", action="append", required=True, help="input PDF file") - parser.add_argument("-o", "--output_file", required=True, help="output PDF file") - parser.add_argument("-p", "--page_range", action="append", help="page range, e.g., '2-9' or '3-end' or 'start-14'") - parser.add_argument("-c", "--crops", action="append", help="cm crops left, bottom, right, top – e.g., '10,10,10,10'; prefix with ':'-delimited page range to limit effect") - parser.add_argument("-r", "--rotate_page", type=int, action="append", help="rotate page of number by 90° (usable multiple times on same page!)") - parser.add_argument("-s", "--symmetry", action="store_true", help="alternate horizontal crops between odd and even pages") - parser.add_argument("-n", "--nup4", action='store_true', help="puts 4 input pages onto 1 output page, adds binding cut stencil") - parser.add_argument("-a", "--analyze", action="store_true", help="in --nup4, print lines identifying spine, page borders") - parser.add_argument("-m", "--print_margin", type=float, default=0.43, help="print margin for --nup4 in cm (default 0.43)") - return parser.parse_args() - - -def validate_inputs_first_pass(args): - for filename in args.input_file: - if not os.path.isfile(filename): - raise HandledException(f"-i: {filename} is not a file") - try: - with open(filename, 'rb') as file: - pypdf.PdfReader(file) - except pypdf.errors.PdfStreamError: - raise HandledException(f"-i: cannot interpret {filename} as PDF file") - if args.page_range: - for p_string in args.page_range: - validate_page_range(p_string, "-p") - if len(args.page_range) > len(args.input_file): - raise HandledException("-p: more --page_range arguments than --input_file arguments") - if args.crops: - for c_string in args.crops: - initial_split = c_string.split(':') - if len(initial_split) > 2: - raise HandledException(f"-c: cropping string has multiple ':': {c_string}") - page_range, crops = split_crops_string(c_string) - crops = crops.split(",") - if page_range: - validate_page_range(page_range, "-c") - if len(crops) != 4: - raise HandledException(f"-c: cropping does not contain exactly three ',': {c_string}") - for crop in crops: - try: - float(crop) - except ValueError: - raise HandledException(f"-c: non-number crop in: {c_string}") - if args.rotate_page: - for r in args.rotate_page: - try: - int(r) - except ValueError: - raise HandledException(f"-r: non-integer value: {r}") - if r < 1: - raise HandledException(f"-r: value must not be <1: {r}") - try: - float(args.print_margin) - except ValueError: - raise HandledException(f"-m: non-float value: {arg.print_margin}") - - -def validate_page_range(p_string, err_msg_prefix): - prefix = f"{err_msg_prefix}: page range string" - if '-' not in p_string: - raise HandledException(f"{prefix} lacks '-': {p_string}") - tokens = p_string.split("-") - if len(tokens) > 2: - raise HandledException(f"{prefix} has too many '-': {p_string}") - for i, token in enumerate(tokens): - if token == "": - continue - if i == 0 and token == "start": - continue - if i == 1 and token == "end": - continue - try: - int(token) - except ValueError: - raise HandledException(f"{prefix} carries value neither integer, nor 'start', nor 'end': {p_string}") - if int(token) < 1: - raise HandledException(f"{prefix} carries page number <1: {p_string}") - start = -1 - end = -1 - try: - start = int(tokens[0]) - end = int(tokens[1]) - except ValueError: - pass - if start > 0 and end > 0 and start > end: - raise HandledException(f"{prefix} has higher start than end value: {p_string}") - - -def split_crops_string(c_string): - initial_split = c_string.split(':') - if len(initial_split) > 1: - page_range = initial_split[0] - crops = initial_split[1] - else: - page_range = None - crops = initial_split[0] - return page_range, crops - - -def parse_page_range(range_string, pages): - start_page = 0 - end_page = len(pages) - if range_string: - start, end = range_string.split('-') - if not (len(start) == 0 or start == "start"): - start_page = int(start) - 1 - if not (len(end) == 0 or end == "end"): - end_page = int(end) - return start_page, end_page - - -def read_inputs_to_pagelist(args_input_file, args_page_range): - pages_to_add = [] - opened_files = [] - new_page_num = 0 - for i, input_file in enumerate(args_input_file): - file = open(input_file, 'rb') - opened_files += [file] - reader = pypdf.PdfReader(file) - range_string = None - if args_page_range and len(args_page_range) > i: - range_string = args_page_range[i] - start_page, end_page = parse_page_range(range_string, reader.pages) - if end_page > len(reader.pages): # no need to test start_page cause start_page > end_page is checked above - raise HandledException(f"-p: page range goes beyond pages of input file: {range_string}") - for old_page_num in range(start_page, end_page): - new_page_num += 1 - page = reader.pages[old_page_num] - pages_to_add += [page] - print(f"-i, -p: read in {input_file} page number {old_page_num+1} as new page {new_page_num}") - return pages_to_add, opened_files - - -def validate_inputs_second_pass(args, pages_to_add): - if args.crops: - for c_string in args.crops: - page_range, _= split_crops_string(c_string) - if page_range: - start, end = parse_page_range(page_range, pages_to_add) - if end > len(pages_to_add): - raise HandledException(f"-c: page range goes beyond number of pages we're building: {page_range}") - if args.rotate_page: - for r in args.rotate_page: - if r > len(pages_to_add): - raise HandledException(f"-r: page number beyond number of pages we're building: {r}") - - -def rotate_pages(args_rotate_page, pages_to_add): - if args_rotate_page: - for rotate_page in args_rotate_page: - page = pages_to_add[rotate_page - 1] - page.add_transformation(pypdf.Transformation().translate(tx=-A4_WIDTH/2, ty=-A4_HEIGHT/2)) - page.add_transformation(pypdf.Transformation().rotate(-90)) - page.add_transformation(pypdf.Transformation().translate(tx=A4_WIDTH/2, ty=A4_HEIGHT/2)) - print(f"-r: rotating (by 90°) page {rotate_page}") - - -def pad_pages_to_multiple_of_8(pages_to_add): - mod_to_8 = len(pages_to_add) % 8 - if mod_to_8 > 0: - old_len = len(pages_to_add) - for _ in range(8 - mod_to_8): - new_page = pypdf.PageObject.create_blank_page(width=A4_WIDTH, height=A4_HEIGHT) - pages_to_add += [new_page] - print(f"-n: number of input pages {old_len} not required multiple of 8, padded to {len(pages_to_add)}") - - -def normalize_pages_to_A4(pages_to_add): - for page in pages_to_add: - if "/Rotate" in page: # TODO: preserve rotation, but in canvas? - page.rotate(360 - page["/Rotate"]) - page.mediabox.left = 0 - page.mediabox.bottom = 0 - page.mediabox.top = A4_HEIGHT - page.mediabox.right = A4_WIDTH - page.cropbox = page.mediabox - - -def collect_per_page_crops_and_zooms(args_crops, args_symmetry, pages_to_add): - crop_at_page = [PageCrop()] * len(pages_to_add) - if args_crops: - for c_string in args_crops: - page_range, crops = split_crops_string(c_string) - start_page, end_page = parse_page_range(page_range, pages_to_add) - prefix = "-c, -t" if args_symmetry else "-c" - suffix = " (but alternating left and right crop between even and odd pages)" if args_symmetry else "" - page_crop = PageCrop(*[x for x in crops.split(',')]) - print(f"{prefix}: to pages {start_page + 1} to {end_page} applying crop: {page_crop.format_in_cm}{suffix}") - for page_num in range(start_page, end_page): - if args_symmetry and page_num % 2: - crop_at_page[page_num] = page_crop.give_mirror() - else: - crop_at_page[page_num] = page_crop - return crop_at_page - - -def build_single_pages_output(writer, pages_to_add, crop_at_page): - print("building 1-input-page-per-output-page book") - odd_page = True - for i, page in enumerate(pages_to_add): - page.add_transformation(pypdf.Transformation().translate(tx=-crop_at_page[i].left, ty=-crop_at_page[i].bottom)) - page.add_transformation(pypdf.Transformation().scale(crop_at_page[i].zoom, crop_at_page[i].zoom)) - page.mediabox.right = crop_at_page[i].remaining_width * crop_at_page[i].zoom - page.mediabox.top = crop_at_page[i].remaining_height * crop_at_page[i].zoom - writer.add_page(page) - odd_page = not odd_page - print(f"built page number {i+1} (of {len(pages_to_add)})") - - -def build_nup4_output(writer, pages_to_add, crop_at_page, args_print_margin, args_analyze, canvas_class): - print("-n: building 4-input-pages-per-output-page book") - print(f"-m: applying printable-area margin of {args_print_margin}cm") - if args_analyze: - print("-a: drawing page borders, spine limits") - nup4_geometry = Nup4Geometry(args_print_margin) - pages_to_add, new_i_order = resort_pages_for_nup4(pages_to_add) - nup4_i = 0 - page_count = 0 - is_front_page = True - for i, page in enumerate(pages_to_add): - if nup4_i == 0: - new_page = pypdf.PageObject.create_blank_page(width=A4_WIDTH, height=A4_HEIGHT) - corrected_i = new_i_order[i] - nup4_inner_page_transform(page, crop_at_page[corrected_i], nup4_geometry, nup4_i) - nup4_outer_page_transform(page, nup4_geometry, nup4_i) - new_page.merge_page(page) - page_count += 1 - print(f"merged page number {page_count} (of {len(pages_to_add)})") - nup4_i += 1 - if nup4_i > 3: - ornate_nup4(writer, args_analyze, is_front_page, new_page, nup4_geometry, canvas_class) - writer.add_page(new_page) - nup4_i = 0 - is_front_page = not is_front_page - - -def resort_pages_for_nup4(pages_to_add): - new_page_order = [] - new_i_order = [] - eight_pack = [] - i = 0 - n_eights = 0 - for page in pages_to_add: - if i == 0: - eight_pack = [] - eight_pack += [page] - i += 1 - if i == 8: - i = 0 - for n in PAGE_ORDER_FOR_NUP4: - new_i_order += [8 * n_eights + n] - new_page_order += [eight_pack[n]] - n_eights += 1 - return new_page_order, new_i_order - - -def nup4_inner_page_transform(page, crop, nup4_geometry, nup4_i): - page.add_transformation(pypdf.Transformation().translate(ty=(A4_HEIGHT / crop.zoom - (A4_HEIGHT - crop.top)))) - if nup4_i == 0 or nup4_i == 2: - page.add_transformation(pypdf.Transformation().translate(tx=-crop.left)) - elif nup4_i == 1 or nup4_i == 3: - page.add_transformation(pypdf.Transformation().translate(tx=(A4_WIDTH / crop.zoom - (A4_WIDTH - crop.right)))) - page.add_transformation(pypdf.Transformation().scale(crop.zoom * nup4_geometry.shrink_for_spine, crop.zoom * nup4_geometry.shrink_for_spine)) - if nup4_i == 2 or nup4_i == 3: - page.add_transformation(pypdf.Transformation().translate(ty=-2*nup4_geometry.margin/nup4_geometry.shrink_for_margin)) - - -def nup4_outer_page_transform(page, nup4_geometry, nup4_i): - page.add_transformation(pypdf.Transformation().translate(ty=(1-nup4_geometry.shrink_for_spine)*A4_HEIGHT)) - if nup4_i == 0 or nup4_i == 1: - y_section = A4_HEIGHT - page.mediabox.bottom = A4_HALF_HEIGHT - page.mediabox.top = A4_HEIGHT - if nup4_i == 2 or nup4_i == 3: - y_section = 0 - page.mediabox.bottom = 0 - page.mediabox.top = A4_HALF_HEIGHT - if nup4_i == 0 or nup4_i == 2: - x_section = 0 - page.mediabox.left = 0 - page.mediabox.right = A4_HALF_WIDTH - if nup4_i == 1 or nup4_i == 3: - page.add_transformation(pypdf.Transformation().translate(tx=(1-nup4_geometry.shrink_for_spine)*A4_WIDTH)) - x_section = A4_WIDTH - page.mediabox.left = A4_HALF_WIDTH - page.mediabox.right = A4_WIDTH - page.add_transformation(pypdf.Transformation().translate(tx=x_section, ty=y_section)) - page.add_transformation(pypdf.Transformation().scale(QUARTER_SCALE_FACTOR, QUARTER_SCALE_FACTOR)) - - -def ornate_nup4(writer, args_analyze, is_front_page, new_page, nup4_geometry, canvas_class): - if args_analyze: - # borders - packet = io.BytesIO() - c = canvas_class(packet, pagesize=A4) - c.setLineWidth(0.1) - c.line(0, A4_HEIGHT, A4_WIDTH, A4_HEIGHT) - c.line(0, A4_HALF_HEIGHT, A4_WIDTH, A4_HALF_HEIGHT) - c.line(0, 0, A4_WIDTH, 0) - c.line(0, A4_HEIGHT, 0, 0) - c.line(A4_HALF_WIDTH, A4_HEIGHT, A4_HALF_WIDTH, 0) - c.line(A4_WIDTH, A4_HEIGHT, A4_WIDTH, 0) - c.save() - new_pdf = pypdf.PdfReader(packet) - new_page.merge_page(new_pdf.pages[0]) - printable_offset_x = nup4_geometry.margin - printable_offset_y = nup4_geometry.margin * A4_HEIGHT / A4_WIDTH - new_page.add_transformation(pypdf.Transformation().scale(nup4_geometry.shrink_for_margin, nup4_geometry.shrink_for_margin)) - new_page.add_transformation(pypdf.Transformation().translate(tx=printable_offset_x, ty=printable_offset_y)) - x_left_spine_limit = A4_HALF_WIDTH * nup4_geometry.shrink_for_spine - x_right_spine_limit = A4_WIDTH - x_left_spine_limit - if args_analyze or is_front_page: - packet = io.BytesIO() - c = canvas_class(packet, pagesize=A4) - if args_analyze: - # spine lines - c.setLineWidth(0.1) - c.line(x_left_spine_limit, A4_HEIGHT, x_left_spine_limit, 0) - c.line(x_right_spine_limit, A4_HEIGHT, x_right_spine_limit, 0) - if is_front_page: - c.setLineWidth(0.2) - draw_cut(c, x_left_spine_limit, (1)) - draw_cut(c, x_right_spine_limit, (-1)) - if args_analyze or is_front_page: - c.save() - new_pdf = pypdf.PdfReader(packet) - new_page.merge_page(new_pdf.pages[0]) - - -def draw_cut(canvas, x_spine_limit, direction): - outer_start_x = x_spine_limit - 0.5 * CUT_WIDTH * direction - inner_start_x = x_spine_limit + 0.5 * CUT_WIDTH * direction - middle_point_y = A4_HALF_HEIGHT + MIDDLE_POINT_DEPTH * direction - end_point_y = A4_HALF_HEIGHT + CUT_DEPTH * direction - canvas.line(inner_start_x, A4_HALF_HEIGHT, x_spine_limit, end_point_y) - canvas.line(x_spine_limit, end_point_y, x_spine_limit, middle_point_y) - canvas.line(x_spine_limit, middle_point_y, outer_start_x, A4_HALF_HEIGHT) - - -def main(): - args = parse_args() - validate_inputs_first_pass(args) - if args.nup4: - try: - from reportlab.pdfgen.canvas import Canvas - except ImportError: - raise HandledException("-n: need reportlab.pdfgen.canvas installed for --nup4") - pages_to_add, opened_files = read_inputs_to_pagelist(args.input_file, args.page_range) - validate_inputs_second_pass(args, pages_to_add) - rotate_pages(args.rotate_page, pages_to_add) - if args.nup4: - pad_pages_to_multiple_of_8(pages_to_add) - normalize_pages_to_A4(pages_to_add) - crop_at_page = collect_per_page_crops_and_zooms(args.crops, args.symmetry, pages_to_add) - writer = pypdf.PdfWriter() - if args.nup4: - build_nup4_output(writer, pages_to_add, crop_at_page, args.print_margin, args.analyze, Canvas) - else: - build_single_pages_output(writer, pages_to_add, crop_at_page) - for file in opened_files: - file.close() - with open(args.output_file, 'wb') as output_file: - writer.write(output_file) - - -if __name__ == "__main__": - try: - main() - except HandledException as e: - handled_error_exit(e) -- 2.30.2