This question evolved as a solution to the problem in old thread about Copy-paste support for documents between Mac and Linux/Windows.
I have these pdf commands in OS X
pdf180 pdfclose pdfjam-pocketmod pdfpun
pdf270 pdfcrop pdfjam-slides3up pdfroff
pdf2dsc pdfcslatex pdfjam-slides6up pdftex
pdf2ps pdfcsplain pdfjoin pdftosrc
pdf90 pdfetex pdflatex pdfxmltex
pdfannotextractor pdfflip pdfmex
pdfatfi pdfjadetex pdfnup
pdfbook pdfjam pdfopen
where nothing comes to my mind as a helpful tool.
How can you split a page from a LaTeX document by keeping the document as produced by xdvipdfmx?
