You can upload, keep, and download different files to the applicant profile.
If you want to do this, you need to:
Open Candidate profile
Click on the Attachments tab (Note: if the applicant has any files, there will be a count of these files on this tab)
Here you have these options to do:
Upload files: just drag and drop or click on Upload from the computer
Download files: you can see the list of files, and to download just click on the download icon
Delete files: if you don't already need some files, you can delete them