Ultimate 2007 lets you collaborate easily with colleagues, partners, and customers--all with one program. There's no need to switch tools when you need to work with people outside your organization. In addition, increased support for Portable Document Format (PDF) and XML Paper Specification (XPS) file formats helps ensure broader distribution of your documents with others.microsoft-office-2007-ultimate-keymicrosoft-office-2007-ultimate-keymicrosoft-office-2007-ultimate-serial