This is the 16728th most frequent Korean word.
사진에서
"In the photo."
The word '사진에서' is used here as a location marker indicating that the mountain is in the photo.
사진에서 보이는 산이 아름다워요.
The mountain seen in the photo is beautiful.
The word '사진에서' is utilized here to specify that the action of smiling is happening in the context of the photo.
사진에서 친구들이 모두 웃고 있어요.
In the photo, all my friends are smiling.
'사진에서' is used to clarify the spatial position of a person within the photo context.