GroupDocs.Signature Product Family

GroupDocs.Signature helps developers add, search, verify, update, and delete electronic signatures (text, image, digital, barcode, QR code, stamp, form-field, and metadata) in PDF, Microsoft Office, OpenDocument, and image files across .NET, Java, Node.js, and Python SDKs. See the supported formats tables for .NET, Java, Node.js and Python for the full lists, or try the free online app.

Getting started

Start quickly with our getting started documentation

Developer guide

Articles and guidelines for basic and advanced development

.NET code examples

Open-source projects for APIs example usage

Getting started

Start quickly with our getting started documentation

Developer guide

Articles and guidelines for basic and advanced development

Java code examples

Open-source projects for APIs example usage

Getting started

Start quickly with our getting started documentation

Developer guide

Articles and guidelines for basic development

Node.js via Java code examples

Open-source projects for APIs example usage

GroupDocs.Signature for Node.js via Java

Getting started

Start quickly with our getting started documentation

Developer guide

Articles and guidelines for development and deployment

Python via .NET code examples

Open-source projects for APIs example usage

GroupDocs.Signature for Python via .NET

Getting started

Sign, verify, and read signatures with Claude, Cursor, and Copilot — locally

Use cases

One prompt per scenario — files never leave your machine

Open source

Server source and installer on GitHub

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GroupDocs.Signature Product Family

Documentation

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