When you delete a page, Confluence puts that page in your space's trash bin. You can actually restore the page from your trash if you have not specifically deleted it from your space's trash bin as well.
You can do so by following these instructions (Note: You need to be a space administrator to restore deleted pages):
- Go to the 'Space Admin' tab of the Browse Space view.
To do this: Go to a page in the space, open the 'Browse' menu and select 'Space Admin'.
The 'Space Administration' view will open. 'Space Admin' is only displayed if you are a space administrator.
- Click on 'Trash' from the left panel. A list of deleted pages and emails for the space is displayed.
- Click on the 'Restore' link beside the page you want to restore.