Update app.py

app.py

@@ -137,9 +137,10 @@ def build_pdf_index():
             embeddings.extend(batch_embeddings)
 
             progress_bar.progress(min((i + batch_size) / total_docs, 1.0))
-            time.sleep(5)
-            progress_bar.empty()
 
+        
+        time.sleep(5)
+        progress_bar.empty()
         embeddings = np.array(embeddings)
 
         return documents, embeddings