The modern
developer-first
eSignature platform.
Create reusable templates, send contracts in minutes, and collect legally binding electronic signatures with an audit trail on every document. Built for developers, freelancers, and growing businesses. Every plan—including Free—includes REST API access.
Signature
J. Smith
01 — Features
Place fields
exactly right.
Drop signature, text, date, and checkbox fields onto any page of any PDF. Fields snap to a grid; nothing shifts when a signer opens the document on a different device.
02 — Features
Signing order,
handled for you.
Enable signing order on any template with two or more roles — like PandaDoc or DocuSeal. Drag to reorder signers; only the first recipient is notified on send. Each next signer is invited automatically once the previous one finishes.
03 — Features
Every action,
on record.
A cryptographic audit trail accompanies every document. IP address, timestamp, and an event hash are recorded at each step, giving you the intent-and-consent documentation the U.S. ESIGN Act and UETA expect from a valid electronic signature.
Process
Three steps.
From upload to signed document. No training required, no onboarding call, no jargon.
01
Upload
Drop in any PDF. ThemiSign renders it field-ready in under two seconds.
02
Configure
Place fields, assign recipients, and enable signing order. Drag roles to set who signs first.
03
Sign & Download
Signers click a link — no account needed. Signed PDF and audit certificate arrive immediately.
Pricing
API access
on every plan.
No features gated behind a sales call. Start on the free tier, upgrade when volume demands it.
Free
Free
Forever free — no card required
- 20 signed documents / month
- 20 API requests / minute
- Drag-and-drop field editor
- Unlimited templates
- Email support
- Multiple Signers
- Signing Order
- Unlimited Teams
- Unlimited Users
- White-labeled Emails
Pro
$12
Per month — cancel anytime
- 500 signed documents / month
- 50 API requests / minute
- Webhooks & SDKs
- Compliance exports
- Priority email support
- Multiple Signers
- Signing Order
- Unlimited Teams
- Unlimited Users
- White-labeled Emails
Business
$50
Per month — cancel anytime
- Unlimited signed documents / month
- 100 API requests / minute
- White-label branding
- Multi-tenant workspaces
- Dedicated API support
- Multiple Signers
- Signing Order
- Unlimited Teams
- Unlimited Users
- White-labeled Emails
All plans include API access, a full audit trail on every document, and developer documentation. Volume pricing available on request.
Recently published blogs
28 Jul 2026
Cut New Hire Delays with Electronic Signatures
Learn how electronic signatures eliminate onboarding paperwork bottlenecks, speed offer acceptance, and get new hires productive before Day 1. Practical steps for HR teams.
Read post
22 Jul 2026
How Agencies Lose Money When Statements of Work Go Unsigned
Unsigned Statements of Work create cash flow gaps, scope disputes, and wasted effort for agencies. Learn the real costs and how better workflows with electronic signatures close deals faster and protect revenue.
Read post
21 Jul 2026
How E-Signatures Cut Project Delays in Advertising Agencies
Advertising agencies lose days waiting on approvals and contracts. See exactly how electronic signatures speed up client sign-offs, revisions, and launches while keeping everything secure and trackable.
Read post
15 Jul 2026
Freelance Web Development Contract Template: Essential Guide + Free Template
Protect your freelance web projects with a solid contract. Download our customizable freelance web development contract template and learn key clauses for scope, payments, IP, and more.
Read post
14 Jul 2026
Why Outsourcing Firms Need Electronic Signatures for Remote Hiring (2026 Guide)
Outsourcing firms face unique remote hiring hurdles like time zones, cross-border compliance, and slow paperwork. Discover how electronic signatures streamline contracts, boost security, and help scale distributed teams efficiently.
Read post
13 Jul 2026
How to Send Your First Document with ThemiSign (Step-by-Step)
Learn exactly how to send your first document for electronic signature in ThemiSign. This practical guide covers registration, templates, roles, fields, and sending via UI or API — perfect for getting started quickly.
Read postFAQ
eSignatures,
explained plainly.
What ThemiSign is, what it isn't, and how we keep your documents legally sound.
What's the difference between an electronic signature and a digital signature?
An electronic signature (eSignature) is any electronic mark — a typed name, a drawn signature, or a click-to-sign action — that shows a person's intent to agree to a document. A digital signature is a separate, certificate-based technology built on public-key cryptography. ThemiSign offers electronic signatures; it does not currently issue certificate-based digital signatures.
Are eSignatures made with ThemiSign legally binding?
In most cases, yes. In the United States, the ESIGN Act (2000) and the Uniform Electronic Transactions Act (UETA) give electronic signatures the same legal standing as a handwritten signature, provided the signer intends to sign, consents to sign electronically, and the record is retained. ThemiSign captures that intent and consent, along with a timestamped audit trail, for every signature.
What compliance standards does ThemiSign follow?
ThemiSign is built to align with the ESIGN Act and UETA — the two laws that govern electronic signatures in the U.S. Neither requires third-party certification; compliance comes from following the legal requirements, which is what our consent capture and audit trail are designed to do. We don't yet hold certifications such as SOC 2 or ISO 27001, and we don't currently offer eIDAS qualified or advanced electronic signatures for EU-regulated use cases.
How does ThemiSign's audit trail work?
Every action on a document — created, sent, viewed, signed, completed — is logged with a timestamp, the signer's IP address, and a hash of that event. Once signing is complete, this becomes a certificate you can download alongside the signed PDF.
Can I use ThemiSign's API and webhooks?
Yes. Every plan, including the free tier, includes API access for creating documents and tracking their status. Webhooks and SDKs are available starting on the Pro plan for teams automating their signing workflows.
Is my data secure?
Documents are transmitted over encrypted connections, and every signing event is recorded to the audit trail described above. We're a growing startup and are working toward formal security certifications; in the meantime, we're glad to answer specific security questions directly.
Your documents deserve
a shorter wait.
Start on the free tier today. No credit card, no lock-in — just a faster way to close agreements.