What does wedding photo trailer mean?

It refers to the quick cut on the wedding day. Because of the increasing number of popular elements nowadays, weddings are also following the trend. A wedding photo trailer is a wedding photo that selects the wedding video taken by the couple on their wedding day, then edits the video, adds music, and puts it on the big screen for playback before the wedding ceremony begins. This is a picture that allows the couple to see their own daytime wedding video in advance.