Update app.py

app.py

@@ -23,7 +23,7 @@ def qa_system(pdf_file, openai_key, prompt, chain_type, k):
     
     # load document
     # loader = PyPDFLoader(pdf_file.name)
-    loader = DirectoryLoader(dir_path, glob="**/*.pdf", loader_cls=PDFLoader)
+    loader = DirectoryLoader(dir_path, glob="**/*.pdf") #, loader_cls=PDFLoader)
     documents = loader.load()
     
     # split the documents into chunks