Add Watermark to Excel Worksheet Python

Watermarking is one of the common ways of protecting documents from unauthorized usage. More often, a watermark defines the ownership of the copyrighted content. In accordance with that, this article covers how to perform watermarking in Excel files programmatically. Particularly, you will learn how to add watermark to an Excel worksheet using Python.

Python Library to Add Watermarks to Excel Worksheets

Aspose.Cells for Python is a spreadsheet manipulation library that lets you create, modify or convert Excel files. We will use it to add watermark to the Excel worksheets. You can download the library or install it using the following pip command.

pip install aspose-cells

Add a Watermark to Excel Worksheet in Python

The following are the steps to add a watermark in an Excel worksheet using Python.

The following code sample shows how to add a watermark to an Excel worksheet.


The following is the screenshot of the Excel worksheet after adding the watermark.

Adding Watermark in Excel Worksheet

Get a Free License

You can use Aspose.Cells for Python without evaluation limitations using a temporary license.

Online Tool to Watermark Excel Files

Use our free online Excel watermarking tool, which is based on Aspose.Cells for Python. You can use this app from anywhere without signing up.


Watermarks are extensively used to prevent the illegal usage of copyrighted Excel files. Accordingly, in this article, you have learned how to add watermark to Excel worksheets using Python. In addition, we have provided you with a free online watermarking tool that let’s you add watermark on Excel sheets.

You can also explore other features of Aspose.Cells for Python using the documentation. In case you would have any queries, you can post on our forum.

See Also