Information: I am currently not working on this anymore. I started to rewrite it, also using JavaFX (a cleaner GUI), but I don't have the time to work on this anymore.
This open-source tool is intended to provide a simple way to manage the mail chaos and simply find letters within seconds so you don't have to browse through thick folders.
No confusing options! Easy and dynamic search! Tag your letters! Add multiple documents!
You ask how to use it? It's really simple!
Scan a letter (with your external scanner driver!), categorize and add it. If you tag your letters and/or add a description you can find it even faster and easier.
You can print the letters directly from the tool.
To be able to use this awesome tool, you'll need a working installation of Java (version 7 or higher). You probably already have it installed anyway.