Text-signing PNG images is a crucial aspect of web application development, ensuring the integrity and traceability of visual content. From invoices and certificates to scanned contracts, adding text signatures to PNG files helps establish trust while streamlining document workflows. In this article, we will explore how to sign PNGs with text signatures in Node.js apps using the Node.js REST API—a powerful tool designed for fast and reliable image signing with fewer API requests.

Steps to Sign PNG with Text Signatures Using Node.js

1. Import and set up GroupDocs.Signature Cloud Node.js SDK
2. Obtain the API credentials and initialize SignApi with them
3. Add the source PNG file with FileInfo
4. Create a text signature and configure the properties using SignTextOptions
5. Define the output file and e-signature settings with SignSettings
6. Send a PNG e-signing request and execute it with the createSignatures method

E-signing PNG images programmatically through the Cloud REST API is straightforward with the above steps. This workflow requires fewer lines of code and minimal configuration, making it ideal for developers who want to embed electronic image signing features into Node.js applications. No need for desktop tools or proprietary libraries; the cloud-native API comes with no heavy dependencies. Furthermore, it works seamlessly across environments and platforms, including Linux, Windows, and macOS.

Code to Sign PNG with Text Signatures Using Node.js

GroupDocs.Signature Cloud Node.js SDK makes adding text signatures to PNG files in your Node.js apps a breeze. It enables developers to integrate this functionality quickly, build trust, and ensure file authenticity. You can supercharge your internal document approval systems and automate workflows using our Node.js REST API, which gives you control and flexibility over digitally signing PNG images while keeping your codebase clean and secure. Build a comprehensive cloud-based e-signature toolkit and offer your end-users an immaculate, cross-platform signing experience.

Check out our guide on how to Sign JPG with Text Signatures Using the Node.js REST API, where we walk through a similar step-by-step process tailored for JPG files.