Update app.py

app.py

@@ -511,7 +511,7 @@ def chatbot_interface(user_query, response_style, selected_retrieval_methods, se
     
     if pdf_file is not None:
         with tempfile.NamedTemporaryFile(mode="wb", suffix=".pdf", delete=False) as tmp:
-            tmp.write(pdf_file)  # Write the uploaded file content to the temporary file
+            tmp.write(pdf_file.read())  # Write the uploaded file content to the temporary file
             pdf_path = tmp.name  
 
         # Create vector DB and Annoy index