What product is used in OSX to edit word or openoffice documents and also works with PDF?
Preserving the layout and appearance from text in a PDF when copying it to anther text processing tool is almost an impossible task, both on OSX and Windows.

I'd suggest two things:


Export to .rtf. In Windows using Acrobat Professional you can export as .rtf, which can be opened by Microsoft Word (among others) and is (sometimes) a close approximation of the layout and still allows for editing the text.
On OSX there appears to be tools that allows exporting to .rtf as well, like this one: File Juicer (never actually tried or used it). You can then open the .rtf file using Word, OpenOffice, etc.
screenshot - However, if post-editing text is not of your concerns, I'd go for a screenshot from the PDF that you paste into whatever editor you are using.