✍️SignStac™Send for Signature →
✍️ Smart E-Signature Workspace
SignStac™
SIGN.
SEND.
DONE.
The smart e-signature solution for real estate, contractors and businesses. Upload a PDF, add fields in seconds, send it to every signer and keep a clean activity trail.
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No credit card requiredBrowser basedMulti-party signing
FREE1 document
every week
✍️ SignStac™
Documents   Templates   Contacts
Send for Signature
FIELDS
✍️ Signature
AA Initials
📅 Date Signed
T Text Field
☑ Checkbox
AUDIT TRAIL
✓ Uploaded
✓ Field added
✓ Sent
✓ Viewed

PURCHASE AGREEMENT

1. Buyer agrees to purchase and Seller agrees to sell the property located at 123 Main Street, Houston, TX 77002
for the total purchase price of $350,000 on the terms set forth in this Agreement.
2. Earnest Money in the amount of $10,000 shall be deposited within 3 days after acceptance.
Buyer Signature
Michael A. Smith
5/21/2025
Seller Signature
Sarah Johnson
5/21/2025
Sign Document
Draw Signature
Michael A.
Add Date
5/21/2025
Apply
📄
Upload Any PDFContracts, bids, leases
➕
Add FieldsIn seconds
👥
Send to SignersBuyer, seller or client
📱
Sign AnywhereAny device
🛡️
Audit TrailActivity captured
🔐 Secure workflowEditing can remain local in the browser.
✍️ Draw or typeMouse, touch or typed signatures.
👥 Multi-party readyAdd buyers, sellers, clients and witnesses.
📋 Audit trailTrack key signing actions for your records.
Snap & Autofill

Capture a Document, ID or Business Card

Use your camera or upload a photo. SignStac is designed to connect OCR so detected data can flow into the signing workflow.
📄
Scan ContractCapture paper paperwork and prep it for signing.
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Scan Buyer IDPrepare buyer name and address fields.
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Scan Seller IDPrepare seller name and address fields.
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Scan Business CardPrepare agent or contractor contact info.
Live Tool

Sign a Document Right Now

Upload a PDF, select a field type and click the page to place it. This front-end demo keeps the flow fast while the production PDF packaging layer is connected.
📄
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Upload a PDF or try a sample contract.
All Parties

Send for Everyone's Signature

Audit Trail

Every Action, Logged

No activity yet.
Why SignStac

Built for real estate and contracting paperwork

📄
PDF-first workflowDesigned for purchase agreements, bids, leases, change orders and business forms.
🖱️
Click-to-place fieldsDrop signature, initials, date and text where you need them.
✍️
Draw or type signatureUse mouse, finger or a typed signature style.
📱
Responsive signingThe interface adapts for desktop, tablet and phone.
📋
Activity trailTimestamp important workflow actions for project records.
🔌
Calculadora NetworkBuilt to connect with bids, estimates and project workflows across your stack.
Start free. Upgrade when your workflow grows.Free tier target: one document every week, no credit card required.
Sign a Document →
Important: SignStac provides electronic signing workflow tools. Whether an electronic signature is legally enforceable depends on the document, transaction and jurisdiction. Production use should include tamper-evident completed documents, signer authentication where appropriate, retention controls, consent/disclosure flows and legal review for regulated transactions.