Redact > Find Text fails with many documents (e.g. 200) in the search folder
This is my process under Windows 10, Acrobat acrobat DC 2015.00630527
Open any file (a bit silly, but you need that to access the Search Text command dialogue box - without a document the 'Find text' from the Redact toolbar is not greyed out, but nothing happens when you select it. Which in itself is a kind of bug).
Tools > Redact > From Redact toolbar select 'Find text'. A dialogue box opens. Select the folder with 200+ files. Enter the search string, make sure it is a search string that will find a hit in +200 files. Or maybe the number of hits is the issue? In that case I think make sure you have +6000 instances found. Select them all. March checked results for redaction. Target folder: Same folder. Keep original file names. Overwrite existing files. Apply redaction marks. OK.
You will find the Acrobat halts at some point: giving strange messages. Like: ""This document was successfully saved, but an error occurred after saving the document. Please close and open again." (independent if the open document - seebeginning of my explanation- is included for redaction or some random document) " and memory errors.
This error even comes up when you keep redacting small amounts of documents but keep Acrobat open for the next batch. I guess bad memory management on the part of Acrobat. So you have to close Acrobat and reopen Acrobat even when you are working with small batches of documents.