Hi, My Rails app has to process and generate PDF XFA files and send to the user/browser. Its working fine. But the issue is that before sending the file to the user, it creates 2 files in the rails tmp directory. If 10 requests come to the pdf_controller, the number of the temp files in the tmp directory will double and it will eat up the space. After searching around I thought that Sweeper will come to the rescue. But not much knowledge about Sweeper. So, can anyone plz suggest which way to go?