Found a nice & small utility from
Matthias Wandel that manipulate EXIF data inside JPEG files.
Jhead is a command line driven program for manipulating the non-image parts of Exif flavour JPEG files that most digital cameras produce.
Jhead v2.6 program Features
- Extracting camera settings from Exif image files
- Able to set and/or adjust the Exif time field
- Manipulation (extrac, replace, regenerate) of Exif integral thumbnails
- Transplant Exif image header from one JPEG to another
Edit JPEG comment fields
- Automatically rotate images upright (using jpegtran) according to "orientation" tag.
- Manage running programs on large batches of Jpegs and restoring Exif header information afterwards.
- Display embedded GPS info (if present)
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