Referenced below and applicable here, O'Reilly state they continue to support DRM-free formats (available from outlets that support them, like Google Play) and

Referenced below and applicable here, O'Reilly state they continue to support DRM-free formats (available from outlets that support them, like Google Play) and acknowledge the PDF issue in this post by Laura Baldwin. https://www.oreilly.com/ideas/the-mission-of-spreading-the-knowledge-of-innovators-continues https://www.oreilly.com/ideas/the-mission-of-spreading-the-k...