Whereas the Acrobat Reader is a freeware product, Adobe also sells a full version of Acrobat 5.0, which includes a PDF writer. Once properly installed, it appears as a printer, "Acrobat PDFWriter" to Windows and will prompt you for a file name and destination every time you "print."

I made use of the software for a project last year because my clients needed a convenient way to transmit complex MS Access reports that could not be altered by the recipient. I have been availing myself of its functionality ever since.