Update app.py

app.py

@@ -51,8 +51,7 @@ def save_chat_to_dataset(user_message, bot_message):
 def process_pdf_with_langchain(pdf_path):
     """Process a PDF file and create a FAISS retriever."""
     try:
-
-                loader = PyPDFLoader(pdf_path)
+        loader = PyPDFLoader(pdf_path)  # Fixed indentation
         documents = loader.load()
 
         text_splitter = RecursiveCharacterTextSplitter(chunk_size=500, chunk_overlap=50)