Snapchat has bought Bitstrips, a company that makes personalized emojis, according to Fortune's Dan Primack.

Bitstrips started as a way to make personalized comics back in 2007, but then pivoted to creating cartoon avatars in addition to the full comic strips. The popular Bitmojis app allowed users to customize an emoji that looks like them and respond with it in messages.

A recent update let Bitmoji users paste their avatar over other images that are already on your phone. It's similar to how Snapchat lets people put localized illustrations like the Eiffel Tower on top of their photos when they're near those places.

Snapchat has made previous acquisitions to help it advance its filters and having a new company than can make an eerie likeness combined with text falls squarely in its targets.

Snapchat declined to comment.

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