First things first, to create a digital signature, you must have a signing certificate, which proves identity and verifies the authenticity of the document. So, when you send a digitally signed file ...

Microsoft's Office programs have powerful options for creating and editing documents as well as protecting those documents. You can add passwords, configure ...

When most people think of Microsoft Excel, they think of organizational charts, budgets and quantitative formulas. However, there is much more to Excel than data manipulation. Adding multimedia images ...