February 11, 2025 Digital Hub Update

By Scribe Inc.

Published

An update has been released for the Digital Hub that fixes an accessibility issue reported by recent versions of the Ace by DAISY App (Ace App).

A small change in the Ace App last week resulted in a new “epub-pagesource” warning for books produced in the Digital Hub. This Hub update changes how print ISBNs are represented in the ePub’s OPF document in order to match the latest accessibility recommendations and to avoid the Ace App warning.

  • Previous output: <dc:source id="src-id">urn:isbn:978##########</dc:source>
  • New output: <meta property="pageBreakSource">urn:isbn:978##########</meta>

Any ebooks that were processed prior to February 11 will need to be reprocessed. If your ebook previously passed the Ace App but you have not placed it in distribution, we recommend that you rerun the ePub conversion in the Digital Hub. This will help ensure that your ebooks remain fully compliant.