Update app.py

app.py

@@ -10,7 +10,7 @@ def extract_text_from_pdf(uploaded_file):
         tmp_file.seek(0)
         with open(tmp_file.name, "rb") as f:
             reader = PyPDF2.PdfReader(f)
-            num_pages = reader.numPages
+            num_pages = len(reader.pages)
             for page_num in range(num_pages):
                 page = reader.getPage(page_num)
                 text += page.extractText()