Acrobat DC Mac Split PDF based on bookmarks only creates one page

[rcoda1]

I have done this before, albeit on the previous version of Acrobat Pro. I am on DC Pro now, current version, Apple Mac Book Pro 15" Retina (2014) El Capitan up to date, with 16 gigs RAM. I have a PDF (this is a print PDF x1a file, that I have exported from InDesign WITH Bookmarks, and as tagged [that didn't seem to make a difference]. 8 pages. Bookmarks were correctly made in InDesign (current version) and export correctly to the PDF. When I go through the procedure (Organize/Split/Top Level Bookmarks, name files based on bookmarks) it only creates one PDF, the last page, which is named correctly. Why is it ignoring the first 7 pages? Should I be using a different spec than x1a? These are for offset printing and there are a lot of files... just trying to save myself some time on the back end. Thanks in advance.

[rcoda1]

Clarification... it creates ONE PDF with all pages in it, but named by the last bookmark?????

[rcoda1]

Seems this worked... Prepression: Splitting PDF Files to Variable File Names

Step 1B - Exporting a “Tagged” PDF from InDesign:

If a text object uses a unique paragraph style, then the PDF can be exported from InDesign with the “Create Tagged PDF” checkbox enabled.

Open the PDF in Acrobat Pro. In the Bookmarks panel, delete any existing Bookmarks. Next access the Bookmarks panel options gear icon and select the “New Bookmark from Structure…” option. Highlight the desired InDesign paragraph style name and press OK. A new parent “Top-Level Bookmark” is created.

Expand the top-level bookmark and highlight all of the child bookmarks contained therein. Drag these child bookmarks out of the parent top-level bookmark, so that they become individual top-level bookmarks. Finally, delete the original (now empty) parent top-level bookmark.