用Python批量去除PDF文件的密码

注意：前提是你知道密码，本代码不是暴力跑字典

最近有个需求，下载了一堆PDF，但都有加密，密码还不一样，每次打开都要输密码很麻烦，所有有了此工具，批量去除所有密码。

import os
from pypdf import PdfReader, PdfWriter

def decrypt_pdfs(folder_path, passwords):
    for filename in os.listdir(folder_path):
        if filename.endswith('.pdf'):
            file_path = os.path.join(folder_path, filename)
            try:
                with open(file_path, 'rb') as pdf_file:
                    pdf_reader = PdfReader(pdf_file)
                    if pdf_reader.is_encrypted:
                        success = False
                        for password in passwords:
                            try:
                                pdf_reader.decrypt(password)
                                if pdf_reader.pages:
                                    pdf_writer = PdfWriter()
                                    for page_num in r