Update app.py

app.py

@@ -70,7 +70,7 @@ def api_load_pdf(inp):
     s = BytesIO(inp)
     text = api_pdf_to_text(s)
 
-    return text
+    return json.dumps(text)
 
 # def compare_with_gpt(iu_code:str,text:str, model_name:Optional[str]=None)->str|None:
 #     iu_course = get_course(iu_code)