Update RAG_utils.py

RAG_utils.py

@@ -403,7 +403,7 @@ class PDFProcessor_Unstructured:
              'Title not found'.
         """
         # Initialize PDF reader
-        pdf_reader = PdfFileReader(uploaded_file)
+        pdf_reader = PdfReader(uploaded_file)
         
         # Extract document information
         meta = pdf_reader.getDocumentInfo()