Liquid State offers a native InDesign Extension. The extension offers a seamless workflow for adding content to your app directly from Adobe InDesign, and supports a range of content interactivity.
As of May 2017 - Liquid State has stopped support for the InDesign Extension. Existing InDeisgn Content inside apps will remain functional. The ability to upload InDesign Documents has been removed. Please contact firstname.lastname@example.org if you need support.