import PyPDF2

import os

path = ''

password = ''

# get all pdf file in pointed directory

for dirpath, dirnames, filenames in os.walk(path):

# open each pdf file and get first page of it

for filename in filenames:

if not filename.endswith('.pdf'):

continue

filepath = os.path.join(dirpath, filename)

pdfFile = PyPDF2.open(filepath, 'rb')

pdfReader = PyPDF2.PdfFileReader(pdfFile)

# if catch Exception then decrypt the file with given pass

try:

pdfReader.getPage(0)

except err:

if pdfReader.decrypt(password):

pdfWriter = PyPDF2.PdfFileWriter()

for page in pdfReader.numPages:

pdfWriter.addPage(pdfReader.getPage(0))

decryptPdfFile = open(destDirectory+filename+'_encrypted.pdf', 'wb')

pdfWriter(decryptPdfFile)

decryptPdfFile.close()

else:

# if pass is error, the print message and continue

print(msg)

continue

pdfFile.close()