Add Watermark to Excel Worksheets using C#

Watermarks are one of the ways to protect Excel files from being used illegally. Often, a watermark defines the ownership of the copyrighted content. In this article, you will learn about adding watermarks to Excel files programmatically. Particularly, the article will cover how to add watermark to Excel worksheets using C#.
July 6, 2021 · 2 min · Usman Aziz