# Introduction

eSignStack lets you send documents for signature, track them, and keep the signed copies, from the app or your own software.

## What you can do

- Upload PDF, Office or image files, add recipients, place fields and send an envelope for signature
- Ask people to sign, approve, acknowledge, or just get a copy, in any order you choose
- Track progress, send reminders, fix mistakes and download completed documents with a signing certificate
- Reuse layouts with templates, share direct links, and sign in person with kiosk mode
- Send and track envelopes from your own app with the API, webhooks and embedded signing

## Key terms

- **Envelope:** what you send. It holds one or more documents, the recipients, and their fields.
- **Recipient:** a person on an envelope. Each has a role: Signer, Approver, Needs to acknowledge, or Gets a copy.
- **Field:** a place on a document for a signature, date, text or other input.
- **Template:** a saved set of documents, roles and fields you can send again.
- **Workspace:** where your envelopes, templates and members live. You can belong to more than one.

## Envelope statuses

| Status | Meaning |
| --- | --- |
| **Draft** | You're still preparing it |
| **Sent** | It's out for signature |
| **Completed** | Everyone has finished |
| **Declined** | A recipient declined or rejected it |
| **Voided** | You canceled it |
| **Expired** | The deadline passed before everyone finished |

## Where to start

### Getting started

- [Quick start](/docs/quick-start): send your first envelope
- [Sandbox](/docs/sandbox): try things without sending real envelopes
- [Plans and billing](/docs/plans-and-billing): what each plan includes

### Sending

- [Create an envelope](/docs/creating-documents)
- [Recipients and roles](/docs/recipients-and-roles)
- [Fields](/docs/fields)
- [Send and track](/docs/sending-for-signature)
- [Signing inbox](/docs/signing-inbox)
- [Saved recipients](/docs/saved-recipients)

### Templates and in person

- [Templates](/docs/templates)
- [Text tags](/docs/text-tags)
- [Share links](/docs/share-links)
- [Kiosk and check-in](/docs/kiosk-mode)

### Organize and verify

- [Folders and filing rules](/docs/filing-rules)
- [Activity and reports](/docs/activity-and-reports)
- [Verify a document](/docs/verification)

### Workspace

- [Workspaces and members](/docs/workspaces-and-members)
- [Branding](/docs/branding)
- [Notifications](/docs/notifications)
- [Sign-in and security](/docs/account-security)

### Developers

- [API quick start](/docs/api-authentication)
- [Envelopes API](/docs/envelopes)
- [Webhooks and events](/docs/webhooks)
- [Embedded signing](/docs/embed-integration)
- [Editor sessions](/docs/editor-sessions)
- [MCP server](/docs/mcp)
- [API reference](/docs/api)

### Platforms

- [eSignStack for Platforms](/docs/platform-integration-guide)
- [Platform console](/docs/platform-console)
- [Platform sign-in](/docs/platform-sign-in)