Python编程快速上手——PDF文件操作案例分析

#! python3
import os, sys, PyPDF2,send2trash

os.makedirs(".\\NewPDF")
print("文件夹创建成功！")
path1 = os.path.abspath(".\\NewPDF")
# 文件加密函数
def decryptFile(argv,p = os.path.abspath(".\\New")):
 tagFloder = '.\\PDF'
 pdfList = []
 #当前目录下创建新文件夹
 #os.makedirs(".\\NewPDF")
 #遍历目标文件夹，将.pdf文件名添加到列表
 for foldername, subfolders, filenames in os.walk(tagFloder):
  for filename in filenames:
   if filename.endswith('.pdf'):
    pdfList.append(filename)
    print('找到PDF文件：%s' %filename)
   else:
    continue
 #对pdf文件进行加密)
 for i in pdfList:
  pdfFile = open(os.path.join(foldername,filename),'rb')
  pdfReader = PyPDF2.PdfFileReader(pdfFile)
  pdfWriter = PyPDF2.PdfFileWriter()
  #拷贝
  for pageNum in range(pdfReader.numPages):
   pdfWriter.addPage(pdfReader.getPage(pageNum))
  newName = i[0:-4] #对文件名进行分割
  pdfWriter.encrypt(argv) #口令加密
  pdfResult = open("{0}\\{1}_encrypted.pdf".format(p,newName),"wb+") #创建新文件名对象
  pdfWriter.write(pdfResult) #写入新文件
  pdfReader2 = PyPDF2.PdfFileReader(pdfResult,'rb')
  #进行加密确认
  if pdfReader2.decrypt(argv):
   print("正确加密！删除原文件中...")
   try:
    send2trash.send2trash(os.path.join(foldername,i))
   except:
    print("删除原文件：%s 失败!"%i)
  pdfResult.close()
  print("Done!")

# 口令拷贝函数
def copyDcrypt(argv,p = os.path.abspath(".\\New")):
 pdfList = []
 for foldername, subfolders, filenames in os.walk("."):
  print("父文件夹：%s"%foldername)
  for filename in filenames:
   if filename.endswith(".pdf"):
    pdfReader = PyPDF2.PdfFileReader(open(os.path.join(foldername,filename),'rb'))
    if pdfReader.isEncrypted:
     pdfList.append(filename)
     print('找到已加密PDF文件：%s' % filename)
   else:
    continue
  for i in pdfList:
   newName = i[0:-4] #对文件名进行分割
   try:
    if pdfReader.decrypt(argv) == 1:
     copyFile = open("{0}\\{1}_PASSWORD.txt" .format(p,newName), 'w')
     copyFile.write("Password is ： %s" % argv)
     copyFile.close()
     print("口令正确！拷贝生成成功！")
    else:
     print("口令错误！")
   except:
    continue
# 调用函数
decryptFile("ABCDEFG",path1) 

copyDcrypt("ABCDEFG",path1)