https://play.google.com/store/apps/details?id=jp.kame.ajt&hl=en
AJT - Jpegtran for Android - Apps on Google Play
Jpegtran (lossless JPEG transformation tool) for Android
for androidon googleajtappsplay
https://android.googlesource.com/platform/external/jpeg/+/refs/tags/android-cts-6.0_r32/jpegtran.c
jpegtran.c - platform/external/jpeg - Git at Google
c platformexternaljpeggitgoogle
https://www.windowsremix.com/software/media/jpegtran
jpegtran performs various useful transformations of JPEG files.
It can also perform some rearrangements of the image data, for example turning an image from landscape to portrait format by rotation.
performsvarioususefultransformationsjpeg