pages referenced before assignment

app.py

@@ -241,9 +241,9 @@ MODELS = {
 
 def process_question(question, document, model=list(MODELS.keys())[0]):
     prediction = MODELS[model](question=question, document=document)
+    pages = [x.copy().convert("RGB") for x in document.preview]
     text_value = prediction["answer"]
     if "word_ids" in prediction:
-        pages = [x.copy().convert("RGB") for x in document.preview]
         image = pages[prediction["page"]]
         draw = ImageDraw.Draw(image, "RGBA")
         word_boxes = lift_word_boxes(document, prediction["page"])