I made this simple action for quickly saving a low-res preview of very large billboard designs, for client approval:
It Duplicates the source (layered psd) to a new merged document, resizes it to max 2000x2000 and saves it to my D drive with Save for Web.
Its almost perfect, except for the filename: The duplicate step in the action makes me end up with "Filename Copy.jpg"
I'd ideally want the " Copy" part stripped and "_LowRes_Preview" suffix added.
Ive found some scripts that help me partially, but the fact that its an unsaved document and both stripping and adding to the filename needs to be done with save for web, make it a bit too advanced for my level

Anybody that could help a hand? Much appreciated!