You cannot manually "delete" a specific photo from your Disney PhotoPass gallery once it has been linked to your account. Instead, the photos are designed to stay in your digital library for the duration of their validity period—which is typically 45 days from the date they were taken. If you are a Magic Key holder or have a Memory Maker entitlement, the photos will simply sit in your gallery until they naturally expire and are purged from Disney's servers. If there is a photo you particularly dislike, you can simply choose not to download it or "hide" it by using the filters in the My Disney Experience app. In rare cases where a photo is offensive or inappropriate, you can contact the Disney PhotoPass Guest Support team directly; they have the administrative ability to remove specific images from your account if there is a valid reason. However, for most guests, the easiest "deletion" method is simply to wait for the 45-day window to close, at which point the images disappear automatically. It is a good reminder to always download the photos you do want before that expiration date, as Disney does not provide a way to recover them once they are gone.