Posted by Alexander Schwartz on Dec 28, 2019; 12:07pm
URL: https://discuss.asciidoctor.org/Starting-PDF-pages-with-an-offset-tp7457p7458.html

I'm not aware of such a feature.

But another feature might help you to achieve something similar: You can import PDF pages into asciidoctor-pdf at generation time:
https://github.com/asciidoctor/asciidoctor-pdf#importing-pdf-pages