DESCR 391 B

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  1. exiftran is a command line utility to transform digital image jpeg
  2. images. It can do lossless rotations like jpegtran, but unlike jpegtran
  3. it cares about the EXIF data: it can rotate images automatically by
  4. checking the exif orientation tag, it updates the exif informaton if
  5. needed (image dimension, orientation), it also rotates the exif
  6. thumbnail. It can process multiple images at once.