Update app.py

app.py

@@ -254,14 +254,18 @@ with gr.Blocks(css=custom_css) as demo:
         if is_valid:
             # Enable the upload button if the file is valid
             output_label.value=''
+            return output_label, gr.update(interactive=True)
         else:
             output_label.value=f'<span style="color:{color}">{message}</span>'
+            return output_label, gr.update(interactive=False)
 
     def process_pdf_and_enable_components(pdf):
         # Process PDF and activate the other components
         output_label.value='<span style="color:blue">جاري معالجة الملف...</span>'
         message, is_valid = upload_pdf(pdf)
         output_label.value=f'<span style="color:green">{message}</span>'
+        return output_label, gr.update(interactive=True)
+        
        
      # When the user uploads a file, validate it and then allow PDF upload
     pdf_input.change(handle_file_upload, inputs=pdf_input, outputs=[output_label,submit_button_pdf])