Big Flaw!

How is it that after using the app to scan to my iPad I couldnt find the files? They were saved in PDF format and saved directly to the device. When I finally found them, I couldnt delete them to free up space, and I could only access them through the print documents section! Thats outrageous! I had to send them to another app to get work done. Please fix this!! Make the files much more accessible and by the way, how do I delete them from within the app.?

posterizedu about Canon PRINT, v2.2.0