Tag Archives: CSharp API to Lock Shapes in PowerPoint PPT

The protection of digital documents is a common concern these days. You don't want any unauthorized person to change the content of your documents. Therefore, it becomes inevitable to use effective protection mechanisms. Accordingly, in this article, we will show you how to protect PPT/PPTX presentations from within your .NET applications. We will accomplish that by locking the shapes in a PowerPoint PPT or PPTX in C#.