The Adstream Platform has a "trash" that stores anything that you delete from a Project or the Library. Only an Administrator has access to the trash but they can sort it out for you in s few seconds.
If you are an Admin, take a look on the bottom of the list of folders/collections and you will see the familiar trash icon. Retrieving something that you've deleted is really easy:
- Click on the trash icon
- Click Restore below the file
- Select the folder that you want to place the file in once retrieved
- Click OK