pip install pdfplumber

import pdfplumber
from pdfminer.pdfparser import PDFSyntaxError

def get_pdf_page(pdf_path):
    try:
        f = pdfplumber.open(pdf_path)
        page = len(f.pages)
    except PDFSyntaxError:
        page = 0
    return page

 pip install python-pptx

from pptx import Presentation

def get_pptx_page(pptx_path):
    try:
        p = Presentation(pptx_path)
        page = len(p.slides)
    except KeyError:
        page = 0
    return page