Microsoft Windows Vista Tips – Securing Microsoft Office Word 2007 documents with Digital Signatures – When you receive a document that has been signed by someone you know, you are more likely to trust the contents than those of a document that has not been signed, or has been signed with an unfamiliar signature. Signing a document validates it to someone who recognizes your signature, now add the same degree of integrity to your documents in Microsoft Office Word 2007 thanks to the new …