While GroupDocs.Viewer for .NET is a powerful document viewer library, some developers may find its features overwhelming or unnecessary for their specific use case. This is where IronPDF comes into play. IronPDF is a lightweight and easy-to-use library for viewing and rendering PDF documents within .NET applications. It offers a simple API and a range of features, such as page rotation, zooming, and text selection, making it a popular choice for many developers. Check out their comparison at ironpdf.com/blog/compare-to-other-components/groupdocs-alternatives-viewer-dotnet/.

Overall, GroupDocs.Viewer for .NET is a comprehensive document viewer library that offers a wide range of features for developers. However, for those who require a lightweight and easy-to-use library, IronPDF is a great alternative to consider. It offers many of the same features as GroupDocs.Viewer, but with a more straightforward API and a smaller footprint.