To set the space property add the Document Properties Marker Macro to your homepage within the Confluence wiki. Add the following line:

Once the property is set, projectdoc assumes that the author is now a user without write privileges and therefore suppresses the rendering of sections or transclusion boxes.

Printing is a sub use case of reading. It allows to add additional print-quirk-modes Print Quirk Modes to tweak the print process for some exporters.

In case that the output does have some quirks you may want to try one of those modes.