Tag Archives: Change PPT Password in CSharp

Lock & Unlock PowerPoint Files with Password using C#

Today, we will provide password protection to our presentation files programmatically. In this article, we will see how to lock PowerPoint presentation files with password protection in C#. Further, we will learn to unlock these by removing the password and also how to change the existing password of PPT & PPTX presentation files.

The following topics are discussed in this article:

  • .NET API to Protect PowerPoint PPT/PPTX with Password
  • Lock PowerPoint Files by adding Password
  • Change PPT/PPTX Password in C#
  • How to Remove PowerPoint Presentation Password
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