Delete Your Facebook Post – You can remove posts that you and your friends post on your timeline. To remove a post from your timeline. Hiding a post that you’ve shared from your Page will remove it from your Page, but not from your Page’s activity log (which only you and other managers of your Page can see). When you delete a post, you’ll permanently remove it from your Page, including your Page’s activity log.
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To hide or delete a post from your Page:
Go to the post on your Page’s timeline.
Click in the top-right corner.
Select Hide from timeline or Delete from Page.
To unhide a post you’ve hidden:
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It’s possible to limit the visibility of old photos and posts by making them private instead of deleting them entirely. Find a post you’d like to hide, and click the Edit icon on the right. Under Custom, scroll down and select Only me. To open it up again, return to the Custom menu and select Public, Friends, or other groups you might have set up.
If someone committed the sin of tagging you without prior approval, navigate to the offending post, click Options on the bottom of the photo and select Remove Tag.
Click Settings at the top of your Page.
Click Activity Log in the left column.
Click next to the post you want to unhide and select Allowed on Page.
Note; If you don’t want something you’re tagged in to appear on your timeline, you’ll need to remove the tag. When you remove a tag, the post will no longer appear on your timeline. However, that post is still visible to the audience it’s shared with in other places on Facebook, such as News Feed and search.