- Run the Document Inspector
The Document Inspector (under File > Info > Check for Issues > Inspect Document) can detect and remove hidden text and other hidden metadata or personal information. You can run this periodically to clean documents. - Restrict editing permissions
If you want to prevent others from accidentally adding hidden text, you can restrict their editing permissions to only allow track changes or comments, not full editing access. This will limit what they can change. - Add a macro to remove hidden text
You can add a simple macro to documents that will run when opened and automatically remove any hidden text. This can help clean documents that may have hidden text lurking.
The key is putting controls in place to surface any hidden text, restrict permissions, and routinely clean up documents. A combination of these approaches can help prevent issues from cropping up. Let me know if you have any other questions!
