Find and Replace in PowerPoints Using C#

The Syncfusion .NET PowerPoint Library allows you to find and replace text in a PowerPoint with other text in all PowerPoint slides and elements, such as shapes, text boxes, tables, and SmartArt. It provides options to find text by matching case and whole words.

• Find and replace in PowerPoints documentation.
• Explore more examples of find and replace.
• Find and Replace in PowerPoints online demo.

How to find and replace text in a PowerPoint using C#

1. Install NuGet package: Install the Syncfusion.Presentation.Net.Core NuGet package in your project.
2. Open the presentation: Create a FileStream object to represent the input presentation.
3. Load in .NET PowerPoint Library: Create an IPresentation object by passing the FileStream object.
4. Find text: Use the FindAll method to find all occurrences of the word ‘product’ in the PowerPoint presentation.
5. Replace text: Iterate through each text match, using the GetAsOneTextPart method to obtain the matching text as a single text part, and then replace the text.
6. Save the presentation: Save the IPresentation object to the FileStream object.

Here is an example of how to find and replace text in a PowerPoint using C# using the Syncfusion .NET PowerPoint Library.

//Open an existing presentation.           
using FileStream inputStream = new FileStream("Template.pptx", FileMode.Open);
using IPresentation pptxDoc = Presentation.Open(inputStream);

//Find all the occurrences of particular text in the PowerPoint presentation.
ITextSelection[] textSelections = pptxDoc.FindAll("product", false, false);
foreach (ITextSelection textSelection in textSelections)
{
    //Get the found text as a single text part.
    ITextPart textPart = textSelection.GetAsOneTextPart();
    //Replace the text.
    textPart.Text = "Service";
}

//Save the presentation.
using FileStream outputStream = new FileStream("Sample.pptx", FileMode.Create);
pptxDoc.Save(outputStream);