Python合并同一个文件夹下所有PDF文件的方法

# -*- coding:utf-8*-import sysreload(sys)sys.setdefaultencoding('utf-8')import osimport os.pathfrom pyPdf import PdfFileReader,PdfFileWriterimport timetime1=time.time()# 使用os模块walk函数，搜索出某目录下的全部pdf文件######################获取同一个文件夹下的所有PDF文件名#######################def getFileName(filepath):  file_list = []  for root,dirs,files in os.walk(filepath):    for filespath in files:      # print(os.path.join(root,filespath))      file_list.append(os.path.join(root,filespath))  return file_list##########################合并同一个文件夹下所有PDF文件########################def MergePDF(filepath,outfile):  output=PdfFileWriter()  outputPages=0  pdf_fileName=getFileName(filepath)  for each in pdf_fileName:    print each    # 读取源pdf文件    input = PdfFileReader(file(each, "rb"))    # 如果pdf文件已经加密，必须首先解密才能使用pyPdf    if input.isEncrypted == True:      input.decrypt("map")    # 获得源pdf文件中页面总数    pageCount = input.getNumPages()    outputPages += pageCount    print pageCount    # 分别将page添加到输出output中    for iPage in range(0, pageCount):      output.addPage(input.getPage(iPage))  print "All Pages Number:"+str(outputPages)  # 最后写pdf文件  outputStream=file(filepath+outfile,"wb")  output.write(outputStream)  outputStream.close()  print "finished"if __name__ == '__main__':  file_dir = r'D:/course/'  out=u"第一周.pdf"  MergePDF(file_dir,out)  time2 = time.time()  print u'总共耗时：' + str(time2 - time1) + 's'

"D:/Program Files/Python27/python.exe" D:/PycharmProjects/learn2017/合并多个PDF文件.pyD:/course/C1W1L01 Welcome.pdf3D:/course/C1W1L02 WhatIsNN.pdf4D:/course/C1W1L03 SupLearnWithNN.pdf4D:/course/C1W1L04 WhyIsDLTakingOff.pdf3D:/course/C1W1L05 AboutThisCourse.pdf3D:/course/C1W1L06 CourseResources.pdf3All Pages Number:20finished总共耗时：0.128000020981sProcess finished with exit code 0