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Create a Digital Signature When you complete your work, you can publish or share that work. Question: how do you know your work has not been edited and changed since you distributed it?   A Digital Signature shows who signed this file, and if it was changed since it was signed.   Try This: Use Digital Signatures Go to Office->Prepare Select: Add a Digital Signature. Choose: Create your own digital ID.     What Do You See? The very first time you try this feature, you will be prompted to get a Digital ID. You can use an online service that can authenticate who you are, or you can create your own. Office ->Prepare ->Add a Digital Signature