Find and replace text in multiple Photoshop files?

Hi there,

Let us say I have six Photoshop files: 1.psd, 2.psd, ..., 6.psd. All of these files contain the word “LoremIpsum” in random text layers, within each document. Is there a way I can search for “LoremIpsum” in all documents and replace it with “Dolor Sit Amet”, all in one go? This is just an example, I need to replace various words, not just one.

I have tried "batch find and replace" software (including powerful tools like Power Grep) but they do not work with psd files… Is there a javascript of external plugin for this kind of task?

Thanks!