Converting website to PDF - landscape

Newbie question:

Usually website converting is okay (portrait), but sometimes I think it better to convert website pages to landscape orientation.

Is this possible?
If so, how am I to proceed?

Is it possible to have Acrobat ask which orientation?

Or alternatively add a landscape oriented conversion to the context menu?

Is it possible to resize the page, for example, when drag top margin down so things I dont need won't be printed

and or insert a page separator, so e.g. images are not cut into two (one part on page 1, other part on page 2)

A little bit like the below (gave it a try to illustratie what I mean)

Acrobat Pro XI

Thanks !

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