Emulated PDF printers are just that: printers. Whatever you want for
layout is done back in your word processor. I don't know what you mean
by "mapping" the layout from your editor into the PDF output since
whatever you do in the editor is what you get out from the PDF printer.
If you're looking on how to remove the top & bottom margins along with
the header and footer space inside your word processor, ask in a
community that knows that editor (Word, OpenOffice, etc). Or use a
plain text editor that doesn't have all those gizmos for features and
use its Print function to create a PDF without whitespace between pages,
especially if the text editor doesn't support paging.
While PDFxchange (their reader, not their Lite product which is their
PDF printer) lets you add annotation to a .pdf file, it isn't a PDF
editor to let you change paging, spacing, etc. You do that back in your
word processor or text editor before you use the Print function within
it to "print" to PDF output. Once in PDF format, you'll need a
different editor to directly modify the .pdf contents if you don't want
to go back to your original word processor/editor to deal with your
changes there. While conversion to PDF is free because the doc format
is open, editing a .pdf file delves into Adobe's proprietary software.
There are cheaper alternatives to Adobe Acrobat but they still cost
money.
http://www.computerworld.com/s/article/9192927/Acrobat_and_its_alternatives_4_ways_to_edit_PDFs_
Currently your doc source is usable by some word processor or text
editor. Since you have that source doc, you edit it in your word
processor or text editor and then "print" it again into a .pdf file. If
the source doc is just the .pdf file then you have to get a PDF editor
to modify its contents.
I did find the following for free editing of PDF files but I don't know
how robust is their feature set. Online solutions means you better not
be uploading .pdf files with sensitive content.
PDFescape (
www.pdfescape.com)* - no draw tool, 4 fonts max
PDFedit (
pdfedit.cz)** - mostly for *NIX, Win32 GUI is beta
OpenOffice - import PDF into Draw
Inkscape (
inkscape.org) - import/export PDF, draw tool, edit
Nitro PDF to Word (
www.pdftoword.com)* - convert .pdf to Word
PDFxchange Viewer (
tracker-software.com) - add text annotation
* Online tool.
** Uses Qt libs: see
http://en.wikipedia.org/wiki/Qt_(framework) (it's
not Quicktime crap). Digia acquired Qt in 2012 from Nokia (at a huge
loss to Nokia) who acquired Qt in 2008 from Trolltech. Qt's future
(suvivability, feature set, cross-platform support) is unclear.