Update app.py

app.py

@@ -509,7 +509,7 @@ def chatbot_interface(user_query, response_style, selected_retrieval_methods, se
     
     
     
-     if pdf_file is not None:
+    if pdf_file is not None:
         # Assume `pdf_file` is the path to the file, so no need for `.read()`
         with tempfile.NamedTemporaryFile(mode="wb", suffix=".pdf", delete=False) as tmp:
             with open(pdf_file, "rb") as f:  # Open the file in binary mode