This post should not be published - it is used to host a PDF (see below) that email links point to.
While the article itself is unpublished and can not be access the PDF upload IS immediately available if link is used.
To access the link - click on the preview at the top of this page. In the preview, right click on the Download PDF link and select 'copy link'
That link can then be shared even with the page remaining 'hidden' from the public.