本文实例讲述了Python实现简单拆分PDF文件的方法。分享给大家供大家参考。具体如下:
依赖pyPdf处理PDF文件
切分pdf文件
使用方法:
1)将要切分的文件放在input_dir目录下
2)在configure.txt文件中设置要切分的份数(如要切分4份,则设置part_num=4)
3)执行程序
4)切分后的文件保存在output_dir目录下
5)运行日志写在pp_log.txt中
P.S. 本程序可以批量切割多个pdf文件
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from pyPdf import PdfFileWriter, PdfFileReader
import os
import time
import sys
def part_pdf(input_file, output_file, config_count, f_w, now, file_name):
file1 = file (input_file, 'rb' )
pdf = PdfFileReader(file1)
pdf_pages_len = len (pdf.pages)
if config_count < = pdf_pages_len:
ye = pdf_pages_len / config_count
lst_ye = pdf_pages_len % config_count
part_count = 0
part_count_ye = 0
for fen in range (config_count):
part_count + = 1
if part_count = = config_count:
part_ye = ye + lst_ye
else :
part_ye = ye
write_pdf(pdf, part_count_ye, part_count_ye + part_ye, fen, output_file)
part_count_ye + = ye
else :
f_w.writelines( 'time: ' + now + ' file name: ' + file_name + ' status: part_num > pdf pages [error]\n' )
sys.exit( 1 )
def write_pdf(pdf, part_count_ye, part_count_ye_end, fen, output_file):
out = PdfFileWriter()
for pp in range (part_count_ye, part_count_ye_end):
out.addPage(pdf.getPage(pp))
ous = file (output_file + '_' + str (fen + 1 ) + '.pdf' , 'wb' )
out.write(ous)
ous.close()
def pdf_main():
f = open ( 'configure.txt' , 'r' )
f_w = open ( 'pp_log.txt' , 'a' )
now = time.strftime( '%Y-%m-%d %H:%M:%S' )
for i in f:
i_ = i.strip()
aa = i_.split( '=' )[ 1 ]
if i_.find( 'part_num=' ) ! = - 1 and aa.isdigit():
config_count = int (aa)
else :
f_w.writelines( 'time: ' + now + ' status: part_num in configure.txt is error [error]\n' )
sys.exit( 1 )
files = os.listdir( 'input_dir/' )
for each in files:
input_file = 'input_dir/' + each
file_name = input_file[input_file.index( '/' ):input_file.index( '.' )]
output_file = 'output_dir/' + file_name
part_pdf(input_file, output_file, config_count, f_w, now, file_name)
f_w.writelines( 'time: ' + now + ' file name: ' + file_name + ' status: success\n' )
pdf_main()
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希望本文所述对大家的Python程序设计有所帮助。