Batch Apply Redactions Across Multiple Files

You can use the Action Wizard in Acrobat Pro to do it. Create a new Action and add to it the Apply Redactions command, followed by a Save command, and then run it on your files. You can also select the folder, and it will process all the files within it. Just note it will also process all sub-folders (as well as convert all non-PDF files to PDFs).

The action should look like this:

Of course, this process is not reversible, so make sure you have a backup copy of the originals, just in case.

P.S. I do not need to search, redact text, and apply across multiple files. All of my files have different information redacted. I simply need to apply the redactions marks that are saved.