Newby help--OCR Indexed pdf Documents

I am confused by how “OCR to searchable pdf” is supposed to work with indexed pdf documents.

When I apply this command with an imported pdf document, the original pdf is deleted and replaced with a pdf+text document.

When I apply this command with an indexed pdf document, it appears that DT creates a new pdf+ text document (with “-1” appended to the name) but keeps the original pdf document.

Is this how it is supposed to work? I am Leary of such duplication (no pun intended).

Do you have Preferences > OCR > Original Document: Move to Trash enabled?

Yes, I do have Preferences > OCR > Original Document: Move to Trash enabled.

And have you emptied the database’s Trash?
If not, do so and check for the extra file in the Finder.

Trash was empty and emptying it again did not make a difference.

Could this be the issue: I had previously moved the Index from one database to another, probably before emptying the trash.

You did OCR on the indexed files then moved the files to another database?

Correct. I dragged the entire group to another database after performing OCR