Amazon will allow authors and publishers to make their DRM-free eBooks available for download in ePub and PDF formats, but only if they explicitly opt-in to this feature. This change applies to new books uploaded without DRM, and existing DRM-free books will not be automatically flagged for download. The decision is seen as a positive step towards giving customers more control over their purchased content. However, some commenters note that this change may not affect a large number of books, as many publishers may not choose to opt-in.