We have already explored how you can create a basic digital signature right within PowerPoint 2010 — and how you can sign your presentation. Each signature is contained inside a digital certificate. Digital certificates, also known as digital IDs can either be self-signed (as explained in our Acquire or Create a Digital Signature in PowerPoint 2010 tutorial) or issued by Certificate Authority within an organization. Although PowerPoint lets you create a certificate, it does not let you create multiple certificates — to do that, you can create a digital certificate outside PowerPoint.
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