How Close to Submission-Ready is the Paperback (5.06" x 7.81") Format?

I’m looking forward to producing a PDF ready to send to Amazon for a paperback using the Paperback (5.06" x 7.81") format. On Windows, I had to do a lot of “post-processing” to get it ready for submission to CreateSpace.

Is there anything I’ll need to do to get a submission-ready file, or can I compile to a PDF and send it right in to KDP (CreateSpace no longer around)?