As a PDF reader this app works well, but what is really frustrating is when downloading a PDF document from a website and loading the document through the downloaded item notification the app throws an error saying that the file is corrupted. But manually loading the file through a file explorer works fine. Update: 06/0/22: I don't know why but now opening a PDF attachment from an email doesn't work properly. Again I have to download the file first, manually open the open and then open the file