Python破解pdf打开密码

安装相应的模块

sudo pip3 install PyPDF2
sudo pip3 install pikepdf
sudo pip3 install tqdm

运行破解代码

import pikepdf
import os
from PyPDF2 import PdfFileReader
from tqdm import tqdm
filename = "/home/uos/Desktop/PyQt5入门.pdf" #pdf文件路径
wordlist = "/home/uos/Desktop/wordlists/rockyou.txt" #密码字典路径
n_words = len(list(open(wordlist, 'rb')))
fp = open(filename, "rb+")
pdfFile = PdfFileReader(fp)
filepath, tempfilename = os.path.split(filename)
with open(wordlist, "rb") as wordlist:
    if pdfFile.isEncrypted:
        for word in tqdm(wordlist, total=n_words, unit="word"):
            try:
                pdf = pikepdf.open(filename, password=word.strip())
            except:
                continue
            else:
                print("[+] Password found:", word.decode().strip())
                exit(0)
        print("[!] Password not found, try other wordlist!")

运行结果
密码为：bengie04

/home/uos/PycharmProjects/pythonProject1/venv/bin/python /home/uos/PycharmProjects/pythonProject1/main.py
  7%|▋         | 1011828/14344392 [22:20<4:54:19, 754.96word/s]
[+] Password found: bengie04

Process finished with exit code 0

1. 密码字典获取
   可以在kali系统的/usr/share/wordlists目录下拷贝一份到uos系统中或者百度rockyou.txt文件
2. 是否可以100%破解
   破解速度与成功率和压缩密码的长度和复杂度有关，简单密码比较容易破解，复杂密码破解时间比较长甚至会破解失败
3. 做实验时尽量选取密码字典中开头的密码以节约时间