我在一个文件夹中有900个.pdf格式的文件。我必须一个接一个地将.pdf转换为.csv，并将这些csv存储在另一个文件夹中

import PyPDF2

def extract_text_from_pdf(file_path):
    with open(file_path, 'rb') as file:
        pdf = PyPDF2.PdfFileReader(file)
        text = ''
        for page in range(pdf.getNumPages()):
            text += pdf.getPage(page).extractText()
        return text

import csv

def save_text_as_csv(text, output_file_path):
    with open(output_file_path, 'w', newline='') as file:
        writer = csv.writer(file)
        lines = text.split('\n')
        for line in lines:
            writer.writerow(line.split(','))

import os

input_folder = 'path/to/input/folder'
output_folder = 'path/to/output/folder'

for filename in os.listdir(input_folder):
    if filename.endswith('.pdf'):
        file_path = os.path.join(input_folder, filename)
        text = extract_text_from_pdf(file_path)
        output_file_path = os.path.join(output_folder, filename.replace('.pdf', '.csv'))
        save_text_as_csv(text, output_file_path)