After installing the macro in manage application in settings you are able to use the macros in your page.
As any macro you can click on the top button or write "{" or "/ " then the name of the macro you want to use.
PDF Hidden Content macro
Using the PDF Hidden Content macro one is able to add any presentation scoped content to a page, without being worried about how this content will look when exported in PDF documents.
Drop inside the added block any content you would like to hide from being printed in PDF documents.
PDF Only Content macro
For the PDF Only Content macro, you will be able to write anything and the content you wrote will be seen just in the edit page and after you export it to PDF.
Page Title macro
For the PDF Page Title macro, you will be able to put the page title in a set of element style wherever you want.