Exiftool

exiftool

Show a summary of meta data information, with

$ exiftool -s image.jpg
ExifToolVersion                 : 12.50
FileName                        : image.jpg
FileSize                        : 796 kB
FileModifyDate                  : 2008:09:09 14:19:08+02:00
FileAccessDate                  : 2023:05:06 11:25:11+02:00
FileInodeChangeDate             : 2023:05:06 11:25:11+02:00
[...]

Show all meta data information:

TBD

Remove just the geo location from the picture:

$ exiftool -GPSPosition image.jpg
GPS Position                    : 23.0" N, 42.00" W

$ exiftool -gps:all= -xmp:geotag= image.jpg

exiv2

Show a summary of meta data information:

$ exiv2 image.jpg
File name       : image.jpg
File size       : 795691 Bytes
MIME type       : image/jpeg
Image size      : 1200 x 1600
Thumbnail       : image/jpeg, 6288 Bytes
[...]

Show all meta data information, with their exact tag names:

$ exiv2 -p a image.jpg
Exif.Image.Make                              Ascii       6  Canon
Exif.Image.Model                             Ascii      25  Canon DIGITAL IXUS 80 IS
Exif.Image.Orientation                       Short       1  top, left
Exif.Image.Software                          Ascii      16  QuickTime 7.6.3
[...]

Show Exif, IPTC and Xmp information separately:

$ exiv2 -p e image.jpg
Exif.Image.ImageDescription                  Ascii      16  foobar
Exif.Image.Make                              Ascii       6  Canon
Exif.Image.Model                             Ascii      25  Canon DIGITAL IXUS 80 IS
[...]

$ exiv2 -p i image.jpg  
Iptc.Application2.Caption                    String     15  foobar

$ exiv2 -p x image.jpg  
Xmp.xmp.Label                                XmpText    15  foobar

Add description to Exif, Xmp and IPTC data:

exiv2 -k -M "add Exif.Image.ImageDescription foo" -M "add Xmp.xmp.Label foo" -M "add Iptc.Application2.Caption foo" image.jpg

Remove all metadata, but preserve the file timestamp:

$ exiv2 --keep delete image.jpg

Remove only Exif data:

$ exiv2 -d e rm image.jpg 
$ exiv2 pr image.jpg 
File name       : image.jpg
File size       : 59360 Bytes
MIME type       : image/jpeg
Image size      : 576 x 768
image.jpg: No Exif data found in the file

Remove a single tag:

$ exiv2 -p x image.jpg  
Xmp.xmp.Label                                XmpText    15  foobar

$ exiv2 --keep --Modify "del Xmp.xmp.Label" image.jpg 
$ exiv2 -p x image.jpg  
[empty]

Repair

Fix corrupted metadata:

$ exiv2 image.jpg
Error: Directory Canon with 6656 entries considered invalid; not read.
Warning: Directory Pentax, entry 0x0004: Data area exceeds data buffer, ignoring it.

$ exiftool -preserve -exif:all= -tagsfromfile @ -exif:all -unsafe -thumbnailimage image.jpg

Check with exiftool -G0 image.jpg and remove image.jpg_original if all is well.