How do I share my old Instagram posts to another site?
To share a photo you've previously uploaded on Instagram to another site:
- Go to your profile and tap the post you'd like to share.
- Tap in the top corner of your post, then tap Share.
- Tap the name of the site where you'd like to share your post (Facebook, Twitter or Tumblr) or copy the link.
- Tap Share.
Keep in mind that if you haven't previously linked your Instagram account to that site or service, you'll be prompted to log in. Once you've linked your Instagram account to that account, the icon for that site will turn blue.