Buy a licence key online to unlock SDF Viewer and get started immediately. No need to reinstall if you have already installed the free trial of the latest version.

A licence key lasts indefinitely, free upgrades to latest version.

For each Single User License, you may install and use one copy of the Software EITHER on any computer you have exclusive access to, OR to a single computer accessible by many users.

For multi-user multi-computer use you must purchase a Multiple User License that enables you to install and use the Software on the number of computers authorized at the time of purchase. Contact Us for multiple licence discounts.

Pay securely online via Stripe using any major credit or debit card or PayPal account.

A licence key will be emailed as soon as your payment clears, usually within seconds.

When purchasing our products in which an unlock key is issued, it is important to print and maintain the registration information in the event it is required at a later date. Loss of issued unlock keys may require purchase of additional license or be subject to a re-licensing fee.

Questions? Please feel free to Contact Us.

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