How to replace words in a Word document using C#, VB.NET

Syncfusion® Essential® DocIO is a .NET Word library used to create, read, and edit Word documents programmatically without Microsoft Word or interop dependencies. Using this library, you can replace words in a Word document in C# and VB.NET.

Steps to replace words in a Word document using C#:

1. Create a new C# console application project.
2. Install the Syncfusion.DocIO.WinForms NuGet package as a reference to your .NET Framework applications from NuGet.org.
3. Include the following namespace in the Program.cs file.

C#

using Syncfusion.DocIO.DLS;

VB

Imports Syncfusion.DocIO.DLS

4. Use the following code to replace words in a Word document.

C#

// Opens the Word template document
using (WordDocument document = new WordDocument("Template.docx"))
{
    // Replaces specific text in the Word document with another text
    document.Replace("Adventure", "Epic", false, false);
    // Saves the Word document
    document.Save("Result.docx");
}

VB

' Opens the Word template document
Using document As WordDocument = New WordDocument("Template.docx")
    ' Replaces specific text in the Word document with another text
    document.Replace("Adventure", "Epic", false, false)
    ' Saves the Word document
    document.Save("Result.docx")
End Using

A complete working example of replace words in a Word document using C# can be downloaded from replace word in a Word document.zip

Input Word document as follows.

By executing the program, you will get the output Word document as follows.

Take a moment to peruse the documentation, where you can find basic Word document processing options along with features like mail merge, merge and split documents, find and replace text in the Word document, protect the Word documents, and most importantly PDF and Image conversions with code examples.

Explore more about the rich set of Syncfusion® Word Framework features.

An online example to replace words in a Word document.