Privacy Policy

Last updated: July 19, 2026

DuctDraft AI is a web-based HVAC drawing conversion and quantity takeoff tool. This Privacy Policy explains how we collect, use, store, and protect information when you use our website, software, and related services.

1. Information We Collect

We may collect the following types of information:

• Account information, such as your email address and login details.
• Uploaded files, including DXF/CAD drawings submitted for conversion.
• Generated outputs, such as converted DXF files, Excel/QTO files, and ZIP packages.
• Usage information, including conversion count, selected module, timestamps, and plan limits.
• Payment and subscription information, such as plan type, Stripe customer ID, and subscription status.
• Technical information, such as browser type, IP address, device information, and server logs.

2. Payment Information

Payments are processed by Stripe. We do not store full credit card numbers or full payment card details on our servers. Stripe may process your payment information according to its own privacy and security policies.

3. How We Use Your Information

We use information to:

• Provide HVAC drawing conversion and quantity takeoff services.
• Create and manage your account.
• Track subscription access and conversion limits.
• Generate downloadable output files.
• Improve reliability, security, and performance.
• Prevent abuse, fraud, unauthorized access, or misuse of the service.
• Respond to support requests.

4. Uploaded Drawings and Files

You retain ownership of the drawings and files you upload. By uploading files, you give DuctDraft AI permission to process those files only for the purpose of providing the service, generating outputs, troubleshooting, and supporting your account.

You are responsible for ensuring that you have the right to upload any drawings, project files, or documents submitted to DuctDraft AI.

5. AI and Training Use

We do not sell your uploaded drawings. We do not use your uploaded drawings to train public AI models. If we add third-party AI processing in the future, this policy will be updated to explain what provider is used and how files are processed.

6. Service Providers

We may use trusted third-party providers to operate the service, including hosting, authentication, database storage, payment processing, email delivery, analytics, and security tools. These providers may process limited data only as needed to provide their services.

7. Data Retention

We retain account, subscription, usage, and conversion records as needed to operate the service, maintain security, resolve disputes, and comply with legal obligations. Uploaded files and generated outputs may be stored temporarily or for support and download purposes. You may contact us to request deletion of your account or files, subject to legal, security, billing, and backup requirements.

8. Security

We use reasonable technical and organizational safeguards to protect information, including backend-only processing, authentication, access controls, file validation, payment webhook verification, and database security policies. However, no online service can guarantee absolute security.

9. Your Rights

Depending on your location, you may have rights to access, correct, delete, or request a copy of your personal information. To make a request, contact us using the email below.

10. Children

DuctDraft AI is intended for business and professional use. It is not intended for children under 13 years old.

11. Changes to This Policy

We may update this Privacy Policy from time to time. The updated version will be posted on this page with a new “Last updated” date.

12. Contact

For privacy questions, contact us at:
support@ductdraftai.com