Uploading multiple files to SharePoint at once can leave all files checked out to you, which means no one can view or edit them. 1 Rather than checking them in one-by-one, you can use this method to check them in all at once. If you have fewer than ~6 files, it will still be faster to do them one-at-a-time.
Mass Check In
To check-in files en mass:
Under Site Actions, select Site Settings
Under Site Administration, Click Content and Structure
Change View: Default View to View: Checked Out to Me
Select the items you wish to check in
Select Actions > Check In
You can also use this technique to mass discard check out, find links to other documents, and other activities.