I have a PSD File having abnormally large EXIF metadata. In many cases, a cause of it is DocumentAncestor what is history data in Adobe Software, such as Photoshop. But this time a cause of it is not DocumentAncestor.
I uncover "<apple_ak:enc_base_image>" is a cause. Due to naming, I think it has relevant to Apple and it is an image encoded with base64. But I don't know where this tag is from.
Does anybody know what this is?