Leonard Rosenthol from Adobe and a key person in the PDF standardization has spoken out in favor of JPEG XL: https://bugs.chromium.org/p/chromium/issues/detail?

Leonard Rosenthol from Adobe and a key person in the PDF standardization has spoken out in favor of JPEG XL: https://bugs.chromium.org/p/chromium/issues/detail?id=1178058#c38 https://bugs.chromium.org/p/chromium/issues/detail?id=117805... It does seem likely that a future edition of PDF will include JPEG XL.