Knowledge Base & FAQ

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Quick answers to frequently asked questions about license activation, compatibility, setup, and product features.

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Articles found: 9

No! USEit Viewer PRO is sold under a Lifetime License model. You buy the program once and use all the features without additional payments.
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Yes, USEit Viewer is a local desktop application. All your files, cache, and processing remain solely on your PC.
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You simply specify the path to your installed (free) Blender or ODA Converter in USEit Viewer settings. The program automatically starts using their engines for high-quality rendering of complex .blend and other 3D models and .dwg drawings.
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Yes, the free version is unlimited in terms of usage time. You can use it as long as you need.
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Select the "Bug Reports & Fixes" or "Feature Suggestions" category when creating a ticket. Provide detailed steps to reproduce the issue or describe your suggested enhancement. Our product engineers review all submissions directly.
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Yes. You can browse public tickets and community discussions under the Open Topics section. To view your personal tickets and full conversation history with our support team, simply log in to your account.
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All payments and billing documents are managed strictly by Paddle.com. Your order confirmation email includes a direct link to access, view, and customize your invoice (including adding VAT numbers). For payment or refund inquiries, please visit Paddle Buyer Support (paddle.net).
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To maintain software security, hardware/domain slot re-allocations are handled by our technical operators. If you upgraded motherboard/CPU hardware or migrated to a new domain, please create a ticket mentioning your license key. An operator will review the license rules and reset the active device slot for you.
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If you lost your license email, you can log in to your Customer Portal to view your active keys. Alternatively, you can open a support ticket providing your purchase email address, and our operators will gladly resend your license details.
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Our customer support team is available 24/7. Open a support ticket or reach out to our engineers.

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