There’s No DRM in JPEG—Let’s Keep It That Way | Electronic Frontier Foundation
▻https://www.eff.org/deeplinks/2015/10/theres-no-drm-jpeg-lets-keep-it-way
We encourage the JPEG committee to continue work on an open standards based Public Key Infrastructure (PKI) architecture for JPEG images that could meet some of the legitimate use cases for improved privacy and security, in an open, backwards-compatible way. However, we warn against any attempt to use the file format itself to enforce the privacy or security restrictions that its metadata describes, by locking up the image or limiting the operations that can be performed on it.