Sorting documents is a machine's job.
You can import PDF files, and you can export your documents (scanned or not) as PDF files.
It learns from the labels you apply on your documents and applies labels automatically on new documents.
Anybody can verify how it's made.
Anybody can learn from it.
Anybody can improve it.
And most importantly, anybody can
check there is no unwanted code
(spyware, adware, etc).
It does what it says it does, nothing less, nothing more.
In other words, it's trustworthy.
One single directory contains all your documents.
Automatic page orientation detection, quick page editing, ...