Adding custom tags to a pano using exiftool

Developers
1

ExifTool supports many standard tags, but you can also define custom XMP tags.

Beware, custom tags will typically not be read by other software.

Firstly, you need to create a custom .config file describing your new tags.

In it you can define your tagnames, e.g. customtag1 and customtag2 in this example

MyExifConfig.config`…

%Image::ExifTool::UserDefined = (
    'Image::ExifTool::Exif::Main' => {
        0xc7c1 => { Name => 'CustomTag1', Writable => 'string' },
        0xc7c2 => { Name => 'CustomTag2', Writable => 'string' },
    },
);

1;  # Required to indicate the file ends correctly

Which can be used as follows;

exiftool -config MyExifConfig.config -CustomTag1="Value for customtag1" -CustomTag2="Value for customtag2" image.jpg