import os
from pyPdf import PdfFileWriter, PdfFileReader
def split(pdf_file, delta, output_dir):
    if not os.path.exists(output_dir):
        os.makedirs(output_dir)
    if not os.path.exists(pdf_file):
        return

    print(\'----------参数信息---------------\')
    print(\'File:\' + pdf_file)
    print(\'PageNums:\' + str(delta))
    print(\'Dest:\' + output_dir)
    print(\'-----------pdf开始切分-----------\')
    file_name = pdf_file.split(\'/\')[-1].split(\'.\')[0]
    output_dir = os.path.join(out_dir, file_name)
    if not os.path.exists(output_dir):
        os.mkdir(output_dir)
    input_stream = file(pdf_file, \'rb\')
    pdf_input = PdfFileReader(input_stream)
    page_count = pdf_input.getNumPages()
    sum_page_count = int(page_count / (delta * 1.0))
    remind_page = page_count % delta
    for i in range(0, sum_page_count + 1):
        start = i * delta
        end = (i + 1) * delta
        pdf_out = PdfFileWriter()
        file_path = os.path.join(output_dir, os.path.split(pdf_file)[1]) #
        if i < sum_page_count:
            full_file_name = file_name + str(start + 1) + \'-\' + str(end) + ".pdf"
            file_path = os.path.join(output_dir, full_file_name)
            print(full_file_name + \'切分完成\')
            for j in range(start, end):
                page = pdf_input.getPage(j)
                pdf_out.addPage(page)
        else:
            full_file_name = file_name + str(start + 1) + \'-\' + str(start + remind_page) + ".pdf"
            file_path = os.path.join(output_dir, full_file_name)
            print(full_file_name + \'切分完成\')
            for j in range(delta * (sum_page_count), page_count):
                page = pdf_input.getPage(j)
                pdf_out.addPage(page)
        out_stream = file(file_path, \'wb\')
        pdf_out.write(out_stream)
        out_stream.close()
    input_stream.close()
    print(\'-----------pdf切分完成-----------\')

if __name__ == \'__main__\':
    import sys
    #python splitPdf.py /Users/xxxxx/Downloads/UNIX网络编程卷1：套接字联网API(第3版).pdf 180 /Users/xxxxx/Documents/output

    try:
        pdf_path = sys.argv[1]
        page_count = int(sys.argv[2])
        out_dir = sys.argv[3]
        split(pdf_path, page_count, out_dir)
    except:
        pass

$ python splitPdf.py /Users/xxxxx/Downloads/UNIX网络编程卷1：套接字联网API(第3版).pdf 180 /Users/xxxxx/Documents/output
----------参数信息---------------
File:/Users/xxxxx/Downloads/UNIX网络编程卷1：套接字联网API(第3版).pdf
PageNums:180
Dest:/Users/xxxxx/Documents/output
-----------pdf开始切分-----------
UNIX网络编程卷1：套接字联网API(第3版)1-180.pdf切分完成
UNIX网络编程卷1：套接字联网API(第3版)181-360.pdf切分完成
UNIX网络编程卷1：套接字联网API(第3版)361-540.pdf切分完成
UNIX网络编程卷1：套接字联网API(第3版)541-720.pdf切分完成
UNIX网络编程卷1：套接字联网API(第3版)721-823.pdf切分完成
-----------pdf切分完成-----------