How to control PDF "Initial view" settings in R?

Question

When using the pdf function in R, how can we control the Initial view settings of the produced document? I mean: navigation tab (page only, bookmarks, etc.), page layout (singe page, single page continuous, etc.) and magnification (actual size, fit page, etc.), as shown here in Acrobat:

I read the documentation of the pdf function but did not find anything about this. If this function does not allow controlling these settings, is it possible to do it in a different way? (e.g. modifying these settings programmatically after the document has been generated).