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Explaining Digital Certificate and Signatures

Last Modified: 2020-03-25
I'm trying to understand what a digital certificate is and why I need it to sign a document.  I know in the following instructions I can create my own digital certificate for free, but when and how do I use a digital certificate to sign something?  What is a digital signature in comparison to taking a picture of my signature and pasting it.  

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Citrix Technology Professional / Director of TechDev Services, IPM
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