Update app.py

app.py

@@ -161,21 +161,22 @@ def answer_question(question, state):
 # ============================================================
 
 with gr.Blocks(title="Granite PDF QA") as demo:
-    gr.Markdown("## 📄🔍 PDF Q&A using IBM Granite\nUpload a PDF and ask questions about its content.")
+    gr.Markdown("## PDF Q&A using IBM Granite\nUpload a PDF and ask questions about its content.")
 
     state = gr.State({"chunks": None, "index": None})
 
-    with gr.Row():
-        with gr.Column(scale=1):
-            pdf_input = gr.File(label="Upload PDF", file_types=[".pdf"])
-            pdf_status = gr.Textbox(label="Status", interactive=False)
+  with gr.Row():
+    with gr.Column(scale=1):
+        pdf_input = gr.File(label="Upload PDF", file_types=[".pdf"])
+        pdf_status = gr.Textbox(label="Status", interactive=False)
 
-        with gr.Column(scale=2):
-            question = gr.Textbox(label="Your question", lines=2)
-            answer = gr.Textbox(label="Answer", lines=8)
+    with gr.Column(scale=2):
+        question = gr.Textbox(label="Your question", lines=2)
+        answer = gr.Textbox(label="Answer", lines=8)
+        ask_button = gr.Button("Ask")
 
-    pdf_input.upload(load_pdf, inputs=[pdf_input, state], outputs=[pdf_status, state])
-    question.submit(answer_question, inputs=[question, state], outputs=answer)
+pdf_input.upload(load_pdf, inputs=[pdf_input, state], outputs=[pdf_status, state])
+ask_button.click(answer_question, inputs=[question, state], outputs=answer)
 
 if __name__ == "__main__":
     demo.launch()