Update RAG_utils.py

RAG_utils.py

@@ -460,7 +460,7 @@ class PDFProcessor_Unstructured:
             results = self.process_pdf()
             title = self.extract_title_from_pdf(self.file_path)
             logging.info("PDF processing completed successfully.")
-            return results, title
+            return (*results, title)
         except Exception as e:
             logging.error(f"Error processing PDF file: {e}", exc_info=True)
             raise