Python同时处理来自多个位置的多个PDF文件

import os
from PyPDF2 import PdfFileReader, PdfFileWriter

def merge_pdfs(input_paths, output_path):
    pdf_writer = PdfFileWriter()

    for path in input_paths:
        with open(path, 'rb') as pdf_file:
            pdf_reader = PdfFileReader(pdf_file)
            for page_num in range(pdf_reader.getNumPages()):
                page = pdf_reader.getPage(page_num)
                pdf_writer.addPage(page)

    with open(output_path, 'wb') as output_file:
        pdf_writer.write(output_file)

def split_pdf(input_path, output_dir):
    with open(input_path, 'rb') as pdf_file:
        pdf_reader = PdfFileReader(pdf_file)
        for page_num in range(pdf_reader.getNumPages()):
            pdf_writer = PdfFileWriter()
            page = pdf_reader.getPage(page_num)
            pdf_writer.addPage(page)

            output_path = os.path.join(output_dir, f'page_{page_num + 1}.pdf')
            with open(output_path, 'wb') as output_file:
                pdf_writer.write(output_file)

def extract_text(input_path):
    with open(input_path, 'rb') as pdf_file:
        pdf_reader = PdfFileReader(pdf_file)
        text = ''
        for page_num in range(pdf_reader.getNumPages()):
            page = pdf_reader.getPage(page_num)
            text += page.extract_text()

    return text

def encrypt_pdf(input_path, output_path, password):
    with open(input_path, 'rb') as pdf_file:
        pdf_reader = PdfFileReader(pdf_file)
        pdf_writer = PdfFileWriter()

        for page_num in range(pdf_reader.getNumPages()):
            page = pdf_reader.getPage(page_num)
            pdf_writer.addPage(page)

        pdf_writer.encrypt(password)

        with open(output_path, 'wb') as output_file:
            pdf_writer.write(output_file)

def decrypt_pdf(input_path, output_path, password):
    with open(input_path, 'rb') as pdf_file:
        pdf_reader = PdfFileReader(pdf_file)
        if pdf_reader.isEncrypted:
            pdf_reader.decrypt(password)

        pdf_writer = PdfFileWriter()

        for page_num in range(pdf_reader.getNumPages()):
            page = pdf_reader.getPage(page_num)
            pdf_writer.addPage(page)

        with open(output_path, 'wb') as output_file:
            pdf_writer.write(output_file)

# 合并多个PDF文件
input_paths = ['path/to/file1.pdf', 'path/to/file2.pdf', 'path/to/file3.pdf']
output_path = 'path/to/merged.pdf'
merge_pdfs(input_paths, output_path)

# 拆分PDF文件
input_path = 'path/to/file.pdf'
output_dir = 'path/to/output'
split_pdf(input_path, output_dir)

# 提取PDF文件中的文本
input_path = 'path/to/file.pdf'
text = extract_text(input_path)
print(text)

# 加密PDF文件
input_path = 'path/to/file.pdf'
output_path = 'path/to/encrypted.pdf'
password = 'password'
encrypt_pdf(input_path, output_path, password)

# 解密PDF文件
input_path = 'path/to/encrypted.pdf'
output_path = 'path/to/decrypted.pdf'
password = 'password'
decrypt_pdf(input_path, output_path, password)