I had written about Liquid Mode for Adobe API in September and would like to know if Adobe has plans to bring the liquid mode to Adobe Embedded API as the current embedded API is not responsive for other devices. Also, would it be possible to let me know if Adobe Embedded API have an impact on SEO?
As for Liquid Mode, we can't comment of future releases or plans.
As for SEO, please see the Embed API Documentation for instructions on how to use Embed API and have the PDF files indexed and appear in search results. https://opensource.adobe.com/pdfembed-sdk-docs/searchengineindexing.html