Incorporating a signature into an Excel document adds a personalized touch and enhances its credibility. In today’s digital age, it has become common practice to include an image signature in electronic documents, including XLSX file format. This article will guide you how to sign XLSX with image signature using C#, allowing you to create polished documents with personalized signatures. Let’s delve into the instructions and effortlessly acquire the knowledge of how to create image signature in XLSX using C# along with code example.

Steps to Sign XLSX with Image Signature using C#

1. Install GroupDocs.Signature for .NET via the NuGet package manager for the insertion of image signature in XLSX
2. Add reference to the necessary namespaces for adding image signature to the XLSX
3. Create an instance of Signature class by passing the XLSX file path as an argument to its constructor
4. Instantiate the ImageSignOptions class by providing the path of the signature image as an argument to its constructor
5. Set desired properties for ImageSignOptions class
6. Call the Signature.Sign method to save and sign XLSX file

You can perform the aforementioned steps on widely used operating systems such as Windows, macOS, and Linux as long as .NET is installed. The library used in this tutorial is designed to be cross-platform compatible, offering a significant advantage as it eliminates the need for installing extra software to integrate image signature into XLSX in C#. Whether you are working on a project or need to share signed documents across diverse platforms, having the capability to insert a signature image in XLSX can be highly valuable. To demonstrate the implementation of this procedure, refer to the accompanying code example below.

Code to Sign XLSX with Image Signature using C#

In the above section, we provided complete detail of signing XLSX with image signature using C# along with code example. The code itself is brief and includes just a few API calls, enabling a seamless execution of the process. Once you have successfully set up the suggested signature library and made the required adjustments to the file paths, incorporating the code for inserting an image signature into your projects becomes very simple.

In previous topic, we presented a detailed, step-by-step tutorial on signing XLSX document with digital signature using C#. If you require additional assistance, we highly recommend consulting our comprehensive guide specifically focused on how to sign XLSX with digital signature using C#.