Adobe Digital Publishing Suite - Manual (Page 139)

folios to which they’re entitled.
Use a different Adobe ID for each multi-folio viewer app you create. See Using Adobe IDs for digital publishing.
The library of a multi-folio viewer lets customers download, view, and purchase folios.
You can create two kinds of folios for a multi-folio viewer app—free and retail. Any folio you publish that is set to Free and Public automatically
appears in the custom viewer’s library with a Download button.
Any folio you publish that is set to Retail and Public must be tied to an in-app purchase you set up in iTunes Connect, Amazon Appstore, or
Google Play. Use the same Product ID when you publish the folio that you use when you set up the in-app purchase. Retail folios appear in the
custom viewer’s library with a Buy button. When customers tap Buy, they can purchase the folio.
Multi-folio subscription viewer app
A viewer app with subscriptions includes a Sign In button and a library option that lets customers select the type of subscription they want. For
example, they can select a 3-Month, 6-Month, or 1-Year option. When they sign in, the viewer checks with the store to determine which folios
they're entitled to download.
You can set up a subscription that works with the Apple App Store or Amazon Appstore (Google Play subscriptions are not yet supported). In
addition, if you’re an Enterprise customer, you can set up a custom entitlement server and give customers the choice of subscribing through the
store or through your service.
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