PDF按顺序合并

from PyPDF2 import PdfMerger
import os


def merge_pdfs(directory, output_filename):
    # 创建一个PdfMerger对象
    merger = PdfMerger()

    # 遍历目录中的所有文件
    for filename in os.listdir(directory):
        if filename.endswith('.pdf'):
            # 打开PDF文件
            filepath = os.path.join(directory, filename)
            with open(filepath, 'rb') as pdf_file:
                # 添加PDF文件到合并器中
                merger.append(pdf_file)

    # 写入合并后的PDF文件
    with open(output_filename, 'wb') as output_file:
        merger.write(output_file)


# 使用示例
merge_pdfs('田野', 'merged.pdf')