def getTextPDF(pdfFileName, password=''):
pdf_file = open(pdfFileName, 'rb')
read_pdf = PdfFileReader(pdf_file)
if password != '':
read_pdf.decrypt(password)
text = []
for i in range(0, read_pdf.getNumPages() - 1):
text.append(read_pdf.getPage(i).extractText())
#return '\n'.join(text)
return text
def decrypt(input, output, password, verbosity, **kwargs):
"""decrypt pdf.
pdfcli decrypt crypted.pdf -o clear.pdf -p password
"""
source = PdfFileReader(input)
source.decrypt(password)
output_pdf = PdfFileWriter()
for page in source.pages:
output_pdf.addPage(page)
if verbosity >= 1:
click.echo("Writing %s" % output.name)
output_pdf.write(output)
def _load(self):
with open(self.path, 'rb') as file:
try:
pdf = PdfFileReader(file)
if pdf.isEncrypted:
# See https://github.com/mstamy2/PyPDF2/issues/51
# Some PDFs that open fine without a password in many apps, apparently
# have a password of an empty string
pdf.decrypt('')
self._meta = {
k: _resolve_object(v)
for k, v in (pdf.getDocumentInfo() or {}).items()
}
except Exception as e:
raise ParseError('Cannot parse PDF', self.path, e)
def decrypt_pdf(input_file: str, password: str):
"""
Decrypts a file using PyPDF4 library.
Precondition: A file is already encrypted
"""
pdf_reader = PdfFileReader(open(input_file, 'rb'), strict=False)
if not pdf_reader.isEncrypted:
print(f"PDF File {input_file} not encrypted")
return False, None, None
pdf_reader.decrypt(password=password)
pdf_writer = PdfFileWriter()
try:
for page_number in range(pdf_reader.numPages):
pdf_writer.addPage(pdf_reader.getPage(page_number))
except utils.PdfReadError as e:
print(f"Error reading PDF File {input_file} = {e}")
return False, None, None
return True, pdf_reader, pdf_writer
def get_reader(filename, password):
try:
old_file = open(filename, 'rb')
print("第一次解密")
except Exception as err:
print("打开失败" + str(err))
return None
pdf_reader = PdfFileReader(old_file, strict=False)
# 这个strict是确定是否应该警告用户所用的问题，也导致一些可纠正的问题是致命的，默认是true
# 这个是创建读的实例
# 下面是解密操作
if pdf_reader.isEncrypted:
if password is None:
print("文件被加密需密码")
return None
else:
if pdf_reader.decrypt(password) != 1:
print("密码不正确")
return None
if old_file in locals():
old_file.close()
return pdf_reader
def get_reader(filename, password):
try:
old_file = open(filename, 'rb')
print('run jiemi1')
except Exception as err:
print('文件打开失败！' + str(err))
return None
# 创建读实例
pdf_reader = PdfFileReader(old_file, strict=False)
# 解密操作
if pdf_reader.isEncrypted:
if password is None:
print('%s文件被加密，需要密码！' % filename)
return None
else:
if pdf_reader.decrypt(password) != 1:
print('%s密码不正确！' % filename)
return None
if old_file in locals():
old_file.close()
return pdf_reader
