> For the complete documentation index, see [llms.txt](https://docs.vida.id/identity-stack/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.vida.id/identity-stack/sign/digital-signature.md).

# Digital Signature

A secure and flexible platform enabling legally binding digital signatures for a variety of use cases. Whether you're an individual, a business, or a developer, VIDA Sign offers multiple ways to sign — from ready-to-use interfaces to deep API integrations.

### VIDA Sign Platform

VIDA Sign Platform is a fully hosted, web-based digital signing solution. Designed for instant access, VSP lets users upload, sign, and send documents with **no setup or coding required**.

> Ideal for: Individuals, businesses, and teams who want to get started quickly with VIDA Sign.

| Feature            | Description                                      |
| ------------------ | ------------------------------------------------ |
| No Setup Required  | Start using right away. No configuration needed. |
| Web-Based          | Access from any browser, no app install needed.  |
| Upload & Sign      | Drag-and-drop document signing.                  |
| Send for Signature | Request signatures from others instantly.        |
| Secure & Compliant | Legally valid, audit-logged, and secure.         |
| Self-Serve         | Easy to use with minimal onboarding.             |

[**Try VIDA Sign Platform for Free**](https://sign.vida.id)

### VIDA's Digital Signature Integration Suite 

VIDA's Integration Suite provides flexible options to embed secure, legally binding digital signature capabilities into your applications, internal tools, or workflows. Whether you're building an enterprise-grade signing flow or adding real-time signing to your app, the suite covers a broad range of integration styles.

> Choose the right tool based on your use case from fully customizable APIs to plug-and-play embedded experiences.
>
> Whether you're building tailored experiences with deep system integrations or launching fast with minimal code, our suite offers options ideal for **developers**, **product teams**, and **enterprise workflows**.

| Integration Option                                                            | Description                                                                               | Best For                             |
| ----------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------- | ------------------------------------ |
| [**OpenAPI**](/identity-stack/sign/digital-signature/vsp-openapi.md)          | A RESTful API to integrate signing workflows into your backend or internal systems.       | Enterprises needing full control     |
| [**DirectSign**](/identity-stack/sign/digital-signature/directsign-api.md)    | An embeddable signing interface for web or mobile apps with built-in user authentication. | App-based user flows, onboarding     |
| [**POA Sign**](/identity-stack/sign/digital-signature/poa-sign-inline-api.md) | API-based delegated signing using Power of Attorney, suited for system-initiated actions. | Automated or proxy signing scenarios |