Exif > ExifTool https://exiftool.org/ https://exiftool.org/ancient_history.html JPEG Tags https://exiftool.org/TagNames/JPEG.html#Adobe cpanm Image::ExifTool 比較† Compare the Metadata of two Files https://exiftool.org/forum/index.php?topic=3276.0 ↑.† ExifToolのかんたんなメモ https://www.digitalboo.net/post/7518/a-note-about-exiftool Link: Exif