The photos will remained linked when you load the new gedcom. If you have changed the spelling of a name that is linked then you will have to relink the photo or photos to that person only. Sometimes
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when I change the spelling of a name of someone on my PC program, I go to the site the site and change the spelling there so I don't have to relink when uploading a new gedcom
Great, thanks for the information. Good idea on the spelling. Will try to remember that.