TOPIC:

Is it possible to get any trial license of Radaee PDF SDK to test it and check that it satisfies our needs? Otherwise, what can we do if we buy license and find out that SDK functionality somehow don't satisfy our needs?

Hi,
you can use demo project and modify the code to check if satisfy your needs.
You can also integrate our SDK into your project and use the same bundleId/package name of demo project to install the app in a physical device and check the reader with a valid license.
I invite you to visit out downloads page and run a demo project