Type field media and .pdf files

This is an automatic translation

Good morning,
using the “media type field” and upload a .pdf file is not shown, in administration, file name or anything that relates to the file.

This causes confusion and do not understand what is being uploaded.

Instead, in the case of images, it is clear why the thumbnail image is shown.

You can show the name of the file in case of .pdf, .txt etc. ?

Thanks, Claudio_