如何抓取嵌入了BeautifulSoup的pdf文件

from bs4 import BeautifulSoup
import requests
import io
import PyPDF2

url = "网页URL"
response = requests.get(url)
soup = BeautifulSoup(response.text, "html.parser")

pdf_link = soup.find("a", href=True)["href"]

pdf_response = requests.get(pdf_link)
pdf_content = io.BytesIO(pdf_response.content)

pdf_reader = PyPDF2.PdfFileReader(pdf_content)
num_pages = pdf_reader.numPages

for page in range(num_pages):
    pdf_page = pdf_reader.getPage(page)
    text = pdf_page.extractText()
    # 处理提取到的文本