PDF解密程序 python

你可以使用以下代码实现PDF解密程序:

import pyPDF4
import pikepdf
import os

def decoder(pdfpath, password):
    try:
        new_pdfpath = pdfpath\[:-4\] + '_decode' + pdfpath\[-4:\]
        with open(pdfpath, "rb") as fp:
            pdfFile = pyPDF4.pdf.PdfFileReader(fp)
            if pdfFile.isEncrypted:
                pdf = pikepdf.open(pdfpath, password=password)
                print("Decryption successful")
                pdf.save(new_pdfpath)
            fp.close()
            print("\n")
    except Exception as e:
        print(f"pdf decode error, info: {e}")
    else:
        print(f"pdf decode successful, check your file in {os.path.dirname(new_pdfpath)}")

if __name__ == '__main__':
    decoder('pdf路径', 'pdf密码')

这段代码使用了`pyPDF4`和`pikepdf`库来实现PDF解密。你需要将`pdf路径`替换为你的PDF文件路径，将`pdf密码`替换为你的PDF文件密码。运行代码后，解密后的PDF文件将保存在与原文件相同的目录下，并在控制台输出解密成功的提示信息。

希望对你有帮助！
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