How to batch create an embedded index for multiple pdf files?

I know how to create an embedded index in an opened pdf file using Acrobat Pro DC. However, I need to do this for hundreds of files so doing this manually one by one is not feasible. How can I automate this process?

Solution 1:

Acrobat Pro can do it for entire folders, as follows:

• Creating Actions using "Action Wizard" in Adobe Acrobat DC
  Define this way an action for creating the embedded index.

• The action to automate above will be the one you already know, to create the index, as described in: Create and manage an index in a PDF

• Use the Action Wizard (Acrobat Pro) to run the above action on all the files in the required folder(s), as described in the section "Run an action".