How do I flood a PDF document with a specific color?

I am trying to take various PDF documents and change all the white elements (both background and on top of other colored objects) to another color (say, green). In Acrobat Professional, I can change the background of a PDF document, but that still does not change the other white objects. These are vector PDFs. Any ideas?How do I flood a PDF document with a specific color?
For wholesale changes to a document like this, I'd advise going back to the original documents, changing the colours there, and then recompiling the PDFs.



If, however, you're stuck with only the PDFs to hand, then you've potentially got a LOTof work on. You'll need to export the graphics/text from the PDFS, import them into some sort of editor (which one will depend on the content) and then recompile the PDFs.



This sort of large scale editing USED to be possible within PDFs, but the procedure was changed with (if memory serves) Acrobat 6 to the point now where only a limited amount of editing is allowed in the compiled PDFS. Even exporting them out to (for instance) RTF won't always work, plus you lose all the formatting.



It all depends on what's been set up in the original compilation.



Best of Luck



Scots