I installed Goodreader on my ipad and tested it by downloading a large PDF and opened it.
The PDF stays blank while it is NOT blank and closing the app (double click home button and long hold home button and click on the red circle), reopening it opens the same PDF again.
I cannot access the PDF by another filebrowser (iStorage doews not show it in 'Documents').
Another question: does Goodreader not support symlinks on SFTP servers ? They do not appear.