Update app.py

app.py

@@ -63,4 +63,11 @@ def process_pdf_and_ask_question(pdf_file,question)
     
     # Process the question
     res = chain({"question": question})
-    return res["answer"]
+    return res["answer"]
+
+gr.Interface(fn=process_pdf_and_ask_question,
+            inputs=[gr.File(file_count="single", type="filepath"), gr.Textbox(lines=2, placeholder="Ask a question...")],
+            outputs="text",
+             title="PDF Q&A",
+             description="Upload a PDF and ask questions about it."
+            )