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This topic describes how to add the GroupDocs.Merger library to your .NET project.

GroupDocs.Merger is available on NuGet. Starting from version 26.4, the main GroupDocs.Merger package is a meta-package that automatically pulls in the correct runtime package for your project’s target framework.

Open a terminal in your project folder and run:

dotnet add package GroupDocs.Merger

In Visual Studio, open Tools > NuGet Package Manager > Package Manager Console and run:

Install-Package GroupDocs.Merger

Add directly to your .csproj file:

<PackageReference Include="GroupDocs.Merger" Version="26.4.0" />

The NuGet package includes assemblies for four target frameworks:

In most cases, install only the main GroupDocs.Merger package — NuGet will resolve the correct runtime package automatically. You can also install a specific runtime package directly if needed:

dotnet add package GroupDocs.Merger.Net80

You can also download the assemblies as a ZIP archive or MSI installer from the GroupDocs Releases website.

1. Download the ZIP or MSI for the desired version.
2. Extract files (ZIP) or run the installer (MSI).
3. In your project, add a reference to the GroupDocs.Merger.dll file for the target framework you need (e.g., lib/net8.0/GroupDocs.Merger.dll).

After installing, verify that the package is accessible by printing the loaded assembly version:

using GroupDocs.Merger;

Console.WriteLine(typeof(Merger).Assembly.GetName().Version);