René Damkot wrote in post #15564903
Do yourself a favor: Do
not include the "Save as" in the action. Use the image processor.
Also, you can do the resizing there, no action needed.
Also also: if you use "Fit image" and enter 1024px in both boxes, it will work for both landscape and portrait

René, it's been a while since I set up actions and such, so I don't recall:
With the Image processor, should you record the action with no "Open" step? Does the image processor automatically open the image, run a processing action, then Save/close it? I think that's how it works, and it may really benefit the OP to know this ahead of time.
'Course you would expact an action to not do an "Open" to an image that you've already opened, but I also don't recall the specifics of using a PS "droplet", that others have suggested. Does a droplet need an Open step in the action? I don't recall!
And then there is the Batch tool available in Bridge -- that has the option to "Override Action 'Open' Commands" but I don't recall the specifics.
I do know that there are different "designs" for Actions depending on the desired useof the Action -- as in a version that could be used hassle-free via the Image Processor, a droplet, batch processing, or just to run in PS as you are processing an open image without just closing it after the Action is done with the processing (such as a sharpening action that you run but then want to, say, Soft Proof or some other thing.
Anyway, I just thought I'd toss all that out!