【Python】切割PDF文件，遇到 PdfReadError: File has not been decrypted

报错日志

runfile('C:/Users/oqur2c/.spyder-py3/temp.py', wdir='D:/Personal/Python_Project')
Traceback (most recent call last):

  File "<ipython-input-1-f09f3fbc9d5f>", line 1, in <module>
    runfile('C:/Users/oqur2c/.spyder-py3/temp.py', wdir='D:/Personal/Python_Project')

  File "D:\ProgramData\Anaconda\lib\site-packages\spyder\utils\site\sitecustomize.py", line 880, in runfile
    execfile(filename, namespace)

  File "D:\ProgramData\Anaconda\lib\site-packages\spyder\utils\site\sitecustomize.py", line 102, in execfile
    exec(compile(f.read(), filename, 'exec'), namespace)

  File "C:/Users/oqur2c/.spyder-py3/temp.py", line 73, in <module>
    split_pdf_1(filename, file[0], file[1], file[2])

  File "C:/Users/oqur2c/.spyder-py3/temp.py", line 22, in split_pdf_1
    page_count = pdf_input.getNumPages()

  File "D:\ProgramData\Anaconda\lib\site-packages\PyPDF2\pdf.py", line 1150, in getNumPages
    raise utils.PdfReadError("File has not been decrypted")

PdfReadError: File has not been decrypted

使用的调用函数

from PyPDF2 import PdfFileReader, PdfFileWriter
def split_pdf_1(infn, startpage, endpage):
    """
    infn: 切分的pdf
    startpage: 从startpage页开始切分，默认从第一页开始切分
    endpage：直到endpage页切分结束
    """
    pdf_output = PdfFileWriter()
    pdf_input = PdfFileReader(open(infn, 'rb'))
    page_count = pdf_input.getNumPages()

    # endpage必须大于startpage，endpage必须小于总页数
    if startpage > endpage:
        print("startpage > endpage")
        return
    if endpage > page_count:
        print("endpage > page_count")
        return
    # 读取对应页进行保存
    for i in range(startpage, endpage):
        pdf_output.addPage(pdf_input.getPage(i))
    pdf_output.write(open("".join(infn.split(".")[:-1]) + "_result.pdf", "wb"))

解决方案：

• 下载qpdf: https://sourceforge.net/projects/qpdf/
• 运行命令，解密文件为新文件
• • ./qpdf --password=’’ --decrypt filename.pdf filename_new.pdf
• 重新运行程序

参考链接

• PyPDF 2解密不工作
• 用python切割合并pdf