Remove Comments & Comment Authors from PPT in C#

Build your own .NET apps to manipulate comments & authors in document files using server-side APIs.

Remove Comments from PPT via C#

In order to remove annotations from the PPT file, we’ll use Aspose.Slides for .NET API which is a feature-rich, powerful and easy to use document manipulation API for C# platform.

Delete Annotations from PPT - C#
using (Presentation presentation = new Presentation("example.ppt"))
{
    // Deletes all comments from the presentation
    foreach (var author in presentation.CommentAuthors)
    {
        author.Comments.Clear();
    }

    // Deletes all authors
    presentation.CommentAuthors.Clear();

    presentation.Save("example_out.pptx", SaveFormat.Pptx);
}

How to Remove Comments from PPT via C#

Install Aspose.Slides for .NET. See Installation .
Load PPT with an instance of Presentation class
Iterate over all Authors of loaded PPT
Remove all Comments of an author
Remove all Authors at the end

Other Supported Annotation Formats

Using C#, one can easily annotate other formats including.

ODP

PPTX