Update app.py

app.py

@@ -181,7 +181,7 @@ async def process_url(url, depth):
         if not all_pages:
             return "No pages were successfully crawled. Please check the URL and try again."
         pdf_buffer = website_to_pdf(all_pages)
-        return pdf_buffer
+        return pdf_buffer.getvalue()  # Return bytes instead of BytesIO object
     except Exception as e:
         logger.error(f"Error in process_url: {str(e)}")
         return f"An error occurred: {str(e)}"
@@ -230,13 +230,13 @@ def update_output(n_clicks, url, depth):
     if not url:
         return "Please enter a valid URL."
     
-    pdf_buffer = asyncio.run(process_url(url, depth))
+    pdf_content = asyncio.run(process_url(url, depth))
     
-    if isinstance(pdf_buffer, str):
-        return pdf_buffer  # This is an error message
+    if isinstance(pdf_content, str):
+        return pdf_content  # This is an error message
     
     try:
-        encoded = base64.b64encode(pdf_buffer.getvalue()).decode()
+        encoded = base64.b64encode(pdf_content).decode()
         
         return html.Div([
             html.H4("PDF Generated Successfully"),