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About the Overlay Tool

The Overlay Tool

The Overlay Tool lets you place text, images, and Sign Language videos over other parts of a Bloom book page.

The Overlay Tool is an advanced feature offered to users possessing a Bloom Subscription. To create new books with the Overlay Tool, you must be a Bloom Enterprise subscriber or use Bloom Enterprise under Bloom’s community funding guidelines.

If you are not a Bloom Enterprise user, you can still read Bloom Books that were created with the Overlay Tool. You can also develop translations of Bloom books which feature Overlays.

See [About Bloom Subscriptions] for more information.

Uses of the Overlay Tool

The Overlay tool enables you to make full-page picture books and comic books.

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For more information, please refer to the videos listed on this page.

Limitations of the Overlay Tool

The Overlay Tool provides simple-to-use tools that are “good enough” for most uses, but there are limitations.

  • You cannot put an overlay element on the front cover of a book.
  • There are certain limits to layering text and images. See Notes on “Publish as ePUB” for details.