很簡(jiǎn)單直接上代碼，需要安裝PyPDF2，然后將下面代碼保存到cut_pdf.py

"""
前置:
pip install PyPDF2
python cut_pdf.py <fn.pdf> start_page end_page
"""
import os
import sys
from PyPDF2 import PdfReader, PdfWriter


def read_pdf(file_name):
    fp = open(file_name, 'rb')
    reader = PdfReader(fp)
    return reader.pages


def write_pdf(pages, to_fn):
    writer = PdfWriter()
    for p in pages:
        writer.add_page(p)
    with open(to_fn, 'wb') as ofp:
        writer.write(ofp)


def cut_pdf(file_path, b, e):
    pages = read_pdf(file_path)

    file_dir, file_name = os.path.split(file_path)
    file_base, file_ext = os.path.splitext(file_name)
    e = min(e, len(pages))
    new_file = file_path.replace(file_base, f'{file_base}__{e}')

    write_pdf(pages[b:e+1], new_file)
    return new_file


if __name__ == '__main__':
    if len(sys.argv) < 4:
        print('用法：\n\tpython <pdf_file> <start_page> <end_page>')
        exit(-1)
    pdf_file = sys.argv[1]
    start_page = sys.argv[2]
    end_page = sys.argv[3]
    ans = cut_pdf(pdf_file, int(start_page), int(end_page))
    print(f'文件寫(xiě)入到: {ans}')

看一下執(zhí)行效果:

$ python cut_pdf.py
用法：
    python <pdf_file> <start_page> <end_page>


$ python cut_pdf.py /Users/neozhao/Documents/圖書(shū)館/人文類/罪與罰.pdf 100 110
文件寫(xiě)入到: /Users/neozhao/Documents/圖書(shū)館/人文類/罪與罰_100_110.pdf

很簡(jiǎn)單吧，趕緊保存下來(lái)，要用的時(shí)候直接用