Posted by habamax on Oct 24, 2019; 7:19am
URL: https://discuss.asciidoctor.org/Set-PDF-document-title-property-tp7273p7276.html

mojavelinux wrote

You need to set the document title to blank so that the default value isn't
used (which is the first section):

Haven't thought about {blank}.

OP wanted non-blank title to be in PDF metadata (bookmarks?) but not in the pdf pages itself, as far as I understood.