NewDigitally sealed PDFs with trusted timestamps

Signatures that hold up.

Send agreements, verify every signer, and get a sealed PDF with a tamper-evident audit trail, so you can prove who signed what, and when.

Free plan · No card required · Signers never need an account

app.pdfsign.in/agreements/new
PDF Sign preparation studio: placing signature fields for two recipients
Teams use it forOffer lettersNDAsRental agreementsVendor onboardingSales contractsConsent formsLoan documents

How it works

From PDF to sealed agreement in four steps

No training needed for you or your signers. Every step produces evidence automatically.

app.pdfsign.in/agreements/…/prepare
Preparation studio with signature and date fields placed for two recipients

Evidence, not just ink

When an agreement is challenged, the evidence package does the talking

A picture of a signature proves little. Each agreement records identity, intent, integrity and time, and seals them together.

Identity
Who signed, and how they proved it: email or SMS code, IP address and device.
Intent
Consent to sign electronically and an explicit confirmation before finishing.
Integrity
SHA-256 of the original and the sealed PDF, protected by a digital seal.
Time
Timestamps from a trusted authority, not just our server clock.
Certificate of completion showing parties, verification methods, document hashes and a QR code
Hash-chained audit trailFive audit events, each storing the hash of the previous event, ending in a trusted timestamp.Sent#9f3a…c21eprev: genesisOTP verified#4be0…77d2prev: 9f3a…Consent#d81c…0a9fprev: 4be0…Signed#2e6b…b415prev: d81c…Sealed#a07d…e93cprev: 2e6b…RFC 3161 timestamp

Everything you need

Simple for signers. Thorough where it counts.

Draw, type or upload

Signers choose how to sign, on any device. Typed signatures are labelled as typed.

Email & SMS one-time codes

Verify every signer before the document opens, not just “they clicked a link”.

Sequential or parallel

Route to the company first, then the customer, or send to everyone at once.

Templates

Prepare once with roles like Employee and HR, then send in seconds.

Automatic reminders

Nudges on your schedule and a warning before an agreement expires.

Hindi & Unicode ready

Names and values in Devanagari render correctly on the sealed PDF and certificate.

Evidence package

One download with the sealed PDF, original, certificate, audit trail and timestamp tokens.

Public verification

Anyone can check a PDF against our records without seeing its contents.

API & webhooks

A REST API with idempotency keys, and signed webhooks for every event.

Bulk send

Send one template to hundreds of people from a CSV, each with their own audit trail.

Reports & exports

Turnaround, completion and who is waiting, with CSV exports of agreements and audit events.

Your brand

Your logo, colour and sender name on every email signers receive.

For your signers

Sign in under a minute, from any phone

No app, no account, no password. A personal link, a one-time code, a clear view of exactly what they're signing, and a copy in their inbox when everyone is done.

  • Guided “next field” navigation
  • See earlier signatures in sequential flows
  • Download a copy to review before signing
  • Decline with a reason, anytime
sign.pdfsign.in
Signer adopting a typed signature on a mobile-friendly signing page

For your team

One workspace for everyone who sends

Invite colleagues with the right role, see what needs attention at a glance, and pay in rupees with a GST invoice for every charge.

  • Owner, Admin, Manager, Sender and Viewer roles
  • Senders see only their own agreements
  • Several organizations under one login
  • UPI, cards and net banking through Razorpay
app.pdfsign.in/dashboard
Team overview: agreements sent and completed over 30 days, plan usage and recent activity

Security

Built like the evidence depends on it, because it does

Your documents are sensitive. Security is part of the product, not a page on the website. Read the details →

SHA-256 fingerprints

Original and final documents are hashed; any change is detectable.

PAdES digital seal

Final PDFs carry a cryptographic seal PDF readers can verify.

RFC 3161 timestamps

A trusted authority attests when the seal and audit trail existed.

Append-only audit trail

Hash-chained events; the database rejects edits and deletes.

Argon2id & two-factor

Modern password hashing and authenticator-app 2FA for your team.

Private by default

Private storage, short-lived signed links, encryption in transit and at rest.

Tenant isolation

Every record is scoped to your organization and checked on every request.

Data in India

Deploy storage and databases in Indian regions.

Pricing

Simple plans in rupees

Start free. Upgrade when you send more. Prices exclude GST.

Free

Try it on real documents

₹0

Start free
  • 3 agreements a month
  • Email verification and OTP
  • Draw, type or upload signatures
  • Sealed PDF + certificate

Starter

For freelancers and small teams

₹399/user/mo

Billed yearly · ₹4,788/user

Choose Starter
  • 30 agreements a month per user
  • Templates
  • Automatic reminders
  • Evidence package download
  • Public verification page
Most popular

Professional

For growing businesses

₹799/user/mo

Billed yearly · ₹9,588/user

Choose Professional
  • Unlimited agreements
  • SMS OTP verification
  • Sequential & parallel signing
  • Trusted timestamps (RFC 3161)
  • Priority email support

Business

For teams with compliance needs

₹1,599/user/mo

Billed yearly · ₹19,188/user

Choose Business
  • Everything in Professional
  • REST API & webhooks
  • Bulk send from CSV
  • SMS OTP (200/month per user)
  • Audit exports

FAQ

Questions, answered

Are electronic signatures legally valid in India?

The Information Technology Act, 2000 recognises electronic records and electronic signatures. Some documents, such as wills, powers of attorney, negotiable instruments and certain property documents, are excluded or need extra formalities like stamping or registration. Check with your lawyer for your specific use case. We don’t claim every signature is valid everywhere.

What makes a signature here hard to dispute?

Each signer is verified (email or SMS one-time code), accepts electronic records consent and confirms intent. Every action is written to a hash-chained audit trail. The final PDF is digitally sealed so any change is detectable, and trusted timestamps prove when the evidence existed.

What do I get when an agreement is complete?

A sealed PDF, a certificate of completion listing every party, verification method, IP address, device and timestamp, and a downloadable evidence package with the original document, audit trail and timestamp tokens.

Can someone check a document without an account?

Yes. Anyone can drop a PDF on the public verification page. It is hashed in their browser and never uploaded, and the page confirms whether it matches a sealed agreement without revealing names or contents.

Where is my data stored?

Documents live in private object storage and are only reachable through short-lived signed links after authorisation. Data is encrypted in transit and at rest, and storage can be pinned to Indian regions.

Do signers need an account?

No. Signers use a personal link and a one-time code. They can sign on a phone in under a minute.

Send your first sealed agreement today

Free to start. Your signers will notice the difference, and so will anyone who checks the paperwork later.