In this tutorial, we’ll go over how to add watermark to excel worksheets using C#. Excel is a widely used application for managing data and creating reports. Often, we want to protect our data by adding a watermark to our Excel worksheets. This instructional article covers the procedure to insert watermark in XLSX using C# along with details on configuring the annotation package and sample code example. Here are the comprehensive instructions for adding watermark in XLSX document.

Steps to Add Watermark to Excel Worksheets using C#

1. Utilize NuGet package manager to install the GroupDocs.Annotation for .NET to add watermark in Excel
2. Add reference to the GroupDocs.Annotation namespace to insert watermark in XLSX
3. Create an instance of Annotator class with the path of XLSX file
4. Instantiate object of WatermarkAnnotation class and define some properties
5. Invoke the Add method of the Annotator class and provide it with the WatermarkAnnotation object as a parameter
6. To complete the process, invoke the Annotator.Save method to save the Excel document to the disk

A watermark is a faint text that appears in the background of the worksheet and is used to identify the document or protect its content from being copied. Using the steps outlined above, you can easily add watermark to excel document in C# without requiring any additional third-party tools on your system. These steps can be applied on Windows, macOS, Linux, or any other operating system that supports .NET. Here is the sample code example for adding watermark in XLSX document.

Code to Add Watermark to Excel Worksheets using C#

In conclusion, adding watermarks to Excel spreadsheets is an effective way to protect your confidential data and prevent unauthorized distribution. With the help of GroupDocs.Annotation for .NET package, you can easily complete the process C# create watermark in xlsx. The steps outlined in this article provide a simple and straightforward approach to insert watermark into your spreadsheets.

Recently, we brought out an article about highlighting the text in PDF, have a look at how to highlight text in PDF using C# guide for detail.