Removing the photographer's shadow

Grandparents holding hands on the lawn at their 50th anniversary party, with the photographer's long shadow stretching up to their feet.

Fictional demonstration. A family wants to frame this photo from their grandparents' 50th wedding anniversary party without the photographer's shadow stretching across the lawn.

Keep in mind: The grass under the shadow is rebuilt by estimate from the sunlit lawn around it; it is not what was actually there.