I need to convert several thousand .tiff image files of scanned documents into edit-restricted PDF/A format. I'm familiar with the Action Wizard but how can I use the Protect PDF command to require a password for editing without having to enter the password on each document manually? I'm using one master password for all documents.
Unfortunately, this option is no longer possible with Actions created in Acrobat DC. Try searching online, though. There are Actions available that were created for earlier versions which you can still import and use in DC and they allow you to do it.
It's an unfortunate step back in functionality.