Note that the statement "Hidden bookmarks are automatically inserted when cross-references are inserted into the document." is somewhat misleading because it stretches a bit further than when the user explicitly adds a CrossRef.

If you build or refresh a Table of Contents or a Table of Figures then there will also be a cross-reference to each heading/caption included. So adding a TOC will insert a bunch of hidden bookmarks.

If you run a macro to remove hidden bookmarks you will break the TOC hyperlink functionality but it will restore itself if you refresh the TOC again (and recreate all those bookmarks).

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Andrew Lockton
Chrysalis Design, Melbourne Australia