Yep

Developed by Ironic Software, Yep is a solution for those who want to keep a clean record of their PDF files by organizing them into specific categories.

The installation process is pretty straightforward and consumes only a little amount of time.

Once you start the program, you discover a typical MacOS interface, that has a main menu at the top, filled with various tabs and search filters. It would've been nice to have some description tags for the toolbar and a few theme customizations.

Yep helps individuals to keep their documents organized, by laying them into categories or folders, and using a Search function to perform advanced searches.

Other embedded functions are the Drag and drop feature, for adding files, or the option to take snapshots. If needed, users are able to add more locations or new documents, and they can scan them, remove, or change their description.

All things considered, Yep is a great tool to manage your PDF files, and keep your documents centralized. The price tag seems a bit high, and there is some improper
use of screen space, and not the best choice of font style.