How do I add e-signatures to my application?

Install the TurboDocx SDK (npm install @turbodocx/sdk), configure with your API key, and call TurboSign.sendSignature() with your document and recipient details. E-signatures can be embedded in 5 minutes.

Is the document generation library open source?

Yes, @turbodocx/html-to-docx is fully open source under the MIT license. It has 79K+ monthly downloads on npm and converts HTML to Word documents in pure JavaScript.

What programming languages are supported?

TurboDocx provides official SDKs for TypeScript/JavaScript, Python, PHP, Go, and Java. All SDKs have full type definitions and comprehensive documentation.

5,700+ e-signatures sent • 5 SDKs • REST API

Legally Binding Signatures.One API Call.

Ship e-signatures in 5 minutes. Not 5 meetings.

5,700+ signatures sent

5 free / month

Audit trail included

View E-Sign API Docs Get API Key Free GitHub SDK

JavaScript

Python

PHP

Java

send-for-signature.ts

Open Source

@turbodocx/html-to-docx

Powering the internet's document generation infrastructure. Production-ready, battle-tested, MIT licensed.

170 stars

79K+/mo

26 forks

Star on GitHub View on npm

terminal

$npm install@turbodocx/html-to-docx

added 1 package in 2.1s

// HTML to a Document file in 3 lines

import HtmlToDocx from "@turbodocx/html-to-docx"

const html = "<h1>Hello world</h1>"

const docx = await HtmlToDocx(html)

API Products

Everything you need to automate documents

E-Signature API

Embed signing flows directly in your app. Legally binding with full audit trail.

Embedded signing experience
Template anchor tags
Audit trail & compliance
Multi-signer workflows

Document Generation

Generate DOCX, PDF, and PPTX from templates with JSON data.

DOCX, PDF, PPTX output
Template variables
Batch creation
Custom branding

Webhooks & Events

Real-time notifications when documents are generated, viewed, or signed.

Document lifecycle events
Signature status updates
Retry & dead-letter handling
Event filtering

SDKs for Every Stack

First-class support for your favorite language

Start Building in Minutes

Choose between our TypeScript SDK for the best developer experience, or use our REST API directly.

send-signature.ts

import { TurboSign } from '@turbodocx/sdk';

// Configure SDK with your credentials
TurboSign.configure({
  apiKey: process.env.TURBODOCX_API_KEY,
  orgId: process.env.TURBODOCX_ORG_ID,
});

// Send for signature using template anchor tags
const result = await TurboSign.sendSignature({
  fileLink: 'https://example.com/contract.pdf',
  documentName: 'Service Agreement',
  recipients: [
    { name: 'John Doe', email: 'john@acme.com', signingOrder: 1 }
  ],
  fields: [
    {
      type: 'signature',
      recipientEmail: 'john@acme.com',
      template: {
        anchor: '{SignHere}',
        placement: 'replace',
        size: { width: 200, height: 50 },
      },
    },
    {
      type: 'date',
      recipientEmail: 'john@acme.com',
      template: {
        anchor: '{DateHere}',
        placement: 'replace',
        size: { width: 150, height: 30 },
      },
    },
  ],
});

// Returns: { success: true, documentId: "...", message: "..." }
// Recipients automatically receive signing invitation via email