Update app.py

app.py

@@ -1,5 +1,5 @@
 import gradio as gr
-from langchain.document_loaders import PyPDFLoader
+from langchain.document_loaders import OnlinePDFLoader
 from langchain.text_splitter import RecursiveCharacterTextSplitter
 from langchain.embeddings import HuggingFaceEmbeddings
 from langchain.vectorstores import FAISS
@@ -15,7 +15,7 @@ def loading_pdf():
 
 def pdf_changes(pdf_doc):
     
-    loader = PyPDFLoader(pdf_doc.name)
+    loader = OnlinePDFLoader(pdf_doc.name)
     pages = loader.load_and_split()
     text_splitter = RecursiveCharacterTextSplitter(
         chunk_size=1024,