Privacy Policy

Last updated: June 13, 2026

1. Introduction

Welcome to iSigner. We are committed to protecting your privacy and ensuring the security of your personal information. This Privacy Policy explains how we collect, use, and safeguard your data when you use our document signing service.

2. Information We Collect

We collect the following types of information:

  • Account Information: Name, email address, and password when you create an account.
  • Profile Data: Optional information you add to your profile such as organization name.
  • Usage Data: How you interact with our service, including signing activity and feature usage.

3. Document Privacy

Your documents are processed entirely within your browser. We do not upload, store, or have access to your PDF files or signed documents. All signature placement and PDF processing happens locally on your device.

4. How We Use Your Information

  • To provide and maintain the iSigner service
  • To authenticate your identity and manage your account
  • To facilitate signing requests between users
  • To send service-related notifications
  • To improve and optimize our service

5. Data Security

We implement industry-standard security measures to protect your personal information. Passwords are hashed using bcrypt. All communication between your browser and our servers is encrypted using TLS. Authentication tokens are securely stored and transmitted.

Two-Factor Authentication (2FA): For signing requests, document owners can enable OTP-based identity verification. Each signer must verify their email with a one-time passcode before accessing the document. OTP codes are rate-limited (max 6 attempts) with a 60-second resend cooldown to prevent abuse.

Audit Trail: Every action on a signing request is recorded in an immutable audit log, including timestamps, IP addresses, user agent information, and SHA-256 cryptographic hashes of each signature. This provides a compliance-grade record for legal and regulatory purposes.

6. Certificates of Completion

When all signers complete a document, iSigner generates a Certificate of Completion PDF that includes the document name, each signer's name and email, the exact date and time of each signature, the device and browser used, the signer's IP address, and a SHA-256 hash of the signature data. This certificate serves as a tamper-proof record of the signing ceremony and can be downloaded by the document owner.

7. Autofill Profile Data

You may optionally save personal details (full name, phone, company, title, address) in your autofill profile to speed up form filling. This data is stored securely on our servers and is only used to pre-populate form fields at your request. You can update or delete your autofill data at any time from your profile page.

8. Data Sharing

We do not sell, trade, or rent your personal information to third parties. We may share limited data only in the following circumstances:

  • When required by law or legal process
  • To protect the rights, safety, or property of iSigner or its users
  • With your explicit consent

9. Your Rights

You have the right to:

  • Access, update, or delete your account information
  • Request a copy of your personal data
  • Withdraw consent for data processing
  • Delete your account at any time

Terms of Service

1. Acceptance of Terms

By accessing or using iSigner, you agree to be bound by these Terms of Service. If you do not agree to these terms, please do not use the service.

2. Use of Service

iSigner provides electronic document signing tools. You agree to use the service only for lawful purposes and in accordance with these terms. You are responsible for maintaining the confidentiality of your account credentials.

3. User Content

You retain ownership of all documents and signatures you create using iSigner. Since documents are processed locally in your browser, we do not claim any rights over your content.

4. Service Availability

We strive to maintain high availability but do not guarantee uninterrupted access to the service. We may modify, suspend, or discontinue any part of the service with reasonable notice.

5. Limitation of Liability

iSigner is provided "as is" without warranties of any kind. We are not liable for any indirect, incidental, or consequential damages arising from your use of the service.

6. Contact

If you have questions about this Privacy Policy or Terms of Service, please contact us at support@isigner.app.