Adding a simple yet powerful text signature to a PNG file might sound small. Still, it can make a big difference while sending proofs, verifying documents, or watermarking your brand images. A text signature adds an extra layer of authenticity to PNGs. This guide will walk you through how to sign PNG files with text signatures in .NET through our lightweight Cloud .NET SDK across multiple platforms without needing heavy tools or complex workflows.

Steps to Sign PNG with Text Signatures Using .NET REST API

1. Install GroupDocs.Signature Cloud SDK for .NET from NuGet
2. Use the Configuration class to set up your client credentials
3. Create an instance of the SignApi class
4. Configure the text signature with SignTextOptions
5. Add the source and output file settings using SignSettings
6. Send a PNG e-sign request and process it with CreateSignatures

For .NET developers building web, mobile, or cloud applications, the ability to programmatically sign PNG images with text signatures can save development time. They can sign loads of images automatically and integrate this functionality into desktop software or cloud-native solutions for Windows, macOS, or Linux. The .NET REST API offers customization flexibility, allowing you to adjust the signature appearance, fonts, colors, and more. There is no reliance on third-party libraries; feel free to interact with the Cloud SDK using simple REST API calls from anywhere.

Code to Sign PNG with Text Signatures Using .NET REST API

Automating image signing improves file tracking, verification, and long-term document management. GroupDocs.Signature Cloud .NET REST API lets you add text-based e-signatures to PNG files using a straightforward workflow. Compared to many other solution providers, our Cloud API gives your projects more control, lower costs, and flexibility. As a developer, you can seamlessly replace manual graphic editing with secure, professional-grade image authentication, using fewer API calls and maximum efficiency.

You can expand your image e-signing portfolio by reviewing our guide on Signing JPG with Text Signatures using the .NET REST API.