Space administrators can restore deleted pages to display them again within the space. Click “Space Tools” at the bottom of the sidebar and then “Overview.”
Click “Content Tools” and then “Trash.” To the right of the deleted page, click “Restore.”
You will be asked if you want to restore the page. Click “OK.”
Click “Space Tools” and “Reorder pages” to sort the restored pages, as they may have been moved when they were deleted.
Watch our Video #71 of the Video Tutorial Series “Learn Atlassian Confluence”. On this page of Atlassian’s documentation, you will find more info about this subject.