How can we manipulate EXIF information on MacOSX? I think it is the easiest way to use exiftool, that is provided by Mac ports.
At first, we have to install exiftool by using Mac ports.
- sudo port selfupdate
- sudo port upgrade outdated
- sudo port install p5-image-exiftool
Then check the EXIF information as below:
- exiftool <JPEG_FILE>
If you prefere specific language, you can give additional option like following:
- exiftool -lang ja <JPEG_FILE> # for Japanese output
To manipulate EXIF data, we have to specify exact EXIF IDs. To get the IDs, check out the information again as follows:
- exiftool -s <JPEG_FILE>
Then, for example, we can specify to modify "CreateDate" like:
- exiftool -CreateDate <JPEG_FILE> # Check the current value.
Create Date : 2012:03:29 12:56:00 - exiftool -CreateDate="1234:05:06 07:08:09" <JPEG_FILE> # Set the new value
- exiftool -CreateDate="" <JPEG_FILE> # Delete the value
- exiftool -GPSAltitude="" -GPSDateTime="" -GPSLatitude="" -GPSLongitude="" -GPSVersionID="" -GPSLatitudeRef="" -GPSLongitudeRef="" -GPSAltitudeRef="" -GPSTimeStamp="" -GPSProcessingMethod="" -GPSDateStamp="" -GPSDateTime="" <JPEG_FILE> # Delete all GPS data
- exiftool -G <JPEG_FILE>