Any content that I place inside the PDF Landscape macro is hidden from view after I save the page. It is also hidden from the PDF when I select Export to PDF from the page menu or from the Space tools. It is only visible in edit mode.
Confluence Server version 5.7.1. PDF Macros for Confluence installed today, 6/27/2017. Windows 10/Office 365. Appears browser independent per test on Chrome, IE, and Edge.