If you are looking for a Script why do you not ask on the Photoshop Scripting Forum?
Apart from that I think an Action (applied to the files with Batch or as a Droplet) in which you place the File as a linked Smart Object might work just fine.
If you are looking for a Script why do you not ask on the Photoshop Scripting Forum?
Apart from that I think an Action (applied to the files with Batch or as a Droplet) in which you place the File as a linked Smart Object might work just fine.