Does a meta data change also re-save the image file?

[Herbert123]

Just curious: how does PhotoLine's browser deal with this? When I add or change a metadata entry using the browser , does it only update the metadata part of an image file, or is the entire image data replaced as well?

[der_fotograf]

AFAIK the complete image with the updated metadata will be saved, like it is done with EXIFTOOL. But the image data will not be touched or modified.

[Herbert123]

Yes, thank you. I checked against file sizes and a jpg's pixel data comparison of the before and after versions, and as far as I can tell only the metadata is updated and the image data itself is left alone.