In this building block, you can upload files, so if you use it in your application, you will be able to upload files to your application as well.
The building block is smart, so if you upload images, it can display thumbnails (this can be enabled in the settings). Additionally, for PDF files, if enabled in the settings, it will extract the text from the file, allowing users to search for this text in the application's list view search. This means that the search function can also find text within PDFs.