Use GroupDocs.Signature for .NET API to build applications in C#, ASP.NET and other .NET-based technologies, that allow you to sign digital business documents such as PDF, Microsoft Word, Excel spreadsheets, PowerPoint presentations, images, OpenDocument and other industry standard file formats without needing to install any additional software. This electronic signature library is simple to work with and .NET Developers can easily add advanced digital signature features in their applications, empowering users to securely sign, search and verify e-Signatures from popular document formats. It supports implementing a variety of signature types like text, image, barcode, QR-code, form field, stamp and metadata.

The document signature API empowers you with simple and advanced search options to locate your required signatures on a document in a flash. The options to apply signature styling, appearance management and customize signature properties such as dimensions, shadow, alignment and more is also doable with this feature-rich document signing API.

GroupDocs.Signature for .NET can be used in any development environment that supports .NET platform. It is compatible with all .NET based languages and supports popular operating systems (Windows, Linux, MacOS) where Mono or .NET frameworks (including .NET Core) can be installed.