I'm not sure why you're getting anything at all actually. "IPTC-ApplicationRecord" is not a valid group name. Use "exiftool -listg1" to list all valid family 1 group names. The IPTC group is not broken down into separate records in family 1, so the group name is just "IPTC", which you have already stated using the "Group" option. So the following should do what you want: