Open and edit presentations

Overview

Edit an existing presentation through its document model. Change text, remove pictures, update charts or rearrange slides without rebuilding the entire file. This is useful for reports that reuse a presentation and replace only the content that changes.

Usage example

This C# example uses Aspose.Slides for .NET. It generates input.pptx with a shape named ReportTitle, finds that shape by name, changes Draft to Final, and saves edited.pptx. The input file is retained.

For setup, see Install Aspose.Slides for .NET.

using Aspose.Slides;
using Aspose.Slides.Export;

using (var source = new Presentation())
{
    var title = source.Slides[0].Shapes.AddAutoShape(ShapeType.Rectangle, 40, 40, 500, 80);
    title.Name = "ReportTitle";
    title.TextFrame.Text = "Draft";
    source.Save("input.pptx", SaveFormat.Pptx);
}
using var presentation = new Presentation("input.pptx");
foreach (var shape in presentation.Slides[0].Shapes)
{
    if (shape.Name == "ReportTitle" && shape is IAutoShape title)
        title.TextFrame.Text = "Final";
}
presentation.Save("edited.pptx", SaveFormat.Pptx);

FAQ

Can I keep the original file?

Yes. Save the edited presentation to another path or output stream instead of replacing the source.

How can I identify the shape I want to edit?

Use an application-assigned shape name or another stable identifier, then check its type before editing. Avoid relying only on its position in the shape collection when templates may change.

How do I update text inside a table cell?

Locate the table, choose its column and row, and edit that cell’s text frame. Cell access is separate from editing a standalone text shape.

Guides

• Open Presentations in .NET

Related feature: Save presentations as PPTX.

All features