Convert HDR video into SDR
automatically

1. Acceptance

By downloading or using HDR to SDR ("the Software"), you agree to these Terms. If you do not agree, do not use the Software.

2. License Grant

Free Tier. I grant you a free, perpetual, non-exclusive, non-transferable license to use the compiled Software I distribute for personal or commercial purposes, subject to the restrictions below.

Pro Tier. Upon purchasing a Pro license, I grant you a non-exclusive, non-transferable license to use the Pro version, unlocked via your license key. Your license covers all v3.x and v4.x releases, including all minor and patch updates within those versions. Version 5 and beyond will be sold separately.

Device Activation. A Pro license is node-locked to a limited number of devices at a time. Activating on a new device requires an internet connection; the app then works offline indefinitely and re-checks with my license server at most once every 30 days. To move your license to a different machine, deactivate it on the old one first (from the license dialog) to free up the slot.

Open Source. The Software's source code is published at github.com/TORlN/HDR-to-SDR under the MIT License for as long as v3.x and v4.x are the current releases. Your rights to use, modify, and redistribute that source code are governed by the MIT License, not by these Terms. Version 5.0 and later may be released under different licensing terms. The MIT License covers the source code only. It does not grant any rights to the "HDR to SDR" name or logo, which remain my trademarks regardless of who compiles or distributes the source.

3. Restrictions

The restrictions below apply to the compiled binaries I distribute (the installer and release downloads) and to your Pro license key, not to the MIT-licensed source code described above. You may not: (a) redistribute, sell, rent, or sublicense the compiled binaries or your license key; (b) reverse engineer or decompile the compiled binaries to bypass license activation or enforcement; (c) remove or obscure any proprietary notices in official builds.

4. Payment & Refunds

Pro licenses are one-time purchases. Lemon Squeezy acts as the Merchant of Record for all purchases. They, not I, are the seller responsible for calculating, collecting, and remitting applicable sales tax and VAT, and their name (not mine) will appear on your billing statement. Prices are in USD. I offer a 30-day refund, no questions asked. Email hdrtosdr.dev@outlook.com to request one.

Because payment is handled entirely by Lemon Squeezy (see Section 3 of the Privacy Policy), I have no control over which countries, banks, or cards their processor is able to accept. This can change without notice due to sanctions, regional restrictions, or card-network policy, independent of anything I do. If checkout fails or is unavailable for your region for reasons outside your control, email hdrtosdr.dev@outlook.com; I handle these on a case-by-case basis and have provided free license keys directly when a legitimate purchase couldn't go through.

5. No Warranty

THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. I DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT.

6. Limitation of Liability

IN NO EVENT SHALL I BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES ARISING FROM YOUR USE OF THE SOFTWARE. MY TOTAL LIABILITY SHALL NOT EXCEED THE AMOUNT YOU PAID FOR THE SOFTWARE IN THE TWELVE MONTHS PRECEDING THE CLAIM.

7. Governing Law & Venue

These Terms are governed by the laws of the State of Colorado, without regard to its conflict-of-laws principles. Any dispute arising from or relating to these Terms or the Software shall be brought exclusively in the state or federal courts located in Colorado, and you consent to personal jurisdiction there.

8. Changes

I may update these Terms at any time. Continued use of the Software after changes constitutes acceptance of the updated Terms.

1. What I Collect

The Desktop App. HDR to SDR does not collect analytics, usage telemetry, or crash reports. It makes two narrow network calls of its own: on launch, it checks GitHub's public API for the latest release version (GitHub, not me, sees the request and your IP address, the same as visiting any GitHub page); and if you activate a Pro license, the app sends your license key and a one-way SHA-256 hash of hardware identifiers (MAC address, hostname, CPU architecture, OS) to Lemon Squeezy to activate and periodically re-validate it, since Pro licenses are locked to a limited number of devices. No other data leaves your machine.

The Website. When you visit hdrtosdr.com, my CDN (Amazon CloudFront) may log standard request data such as IP address, browser type, and pages visited. I do not use tracking pixels, third-party analytics, or persistent cookies.

Purchases. Lemon Squeezy acts as the Merchant of Record and handles payment entirely. They calculate, collect, and remit any applicable sales tax or VAT, and their name appears on your billing statement, not mine. I receive your email address in order to deliver your license key. I do not store payment card details.

2. How I Use Your Information

I use your email solely to deliver your license key. I do not send marketing emails, sell your data, or share it with third parties beyond what is necessary to fulfill your purchase.

3. Third-Party Services

• Lemon Squeezy: Merchant of Record and payment processor for all purchases. Subject to their privacy policy at lemonsqueezy.com.
• Amazon CloudFront / S3:website hosting and content delivery.
• GitHub:public issue tracker for support requests.

4. Data Retention

Purchase records are retained as required by applicable accounting and tax law. You may request deletion of your personal data by emailing hdrtosdr.dev@outlook.com directly, rather than a public channel, since that request will typically include your email address and other personal details.

5. Children's Privacy

The Software is not directed at children under 13. I do not knowingly collect information from children.

6. Changes

I may update this Policy at any time. The effective date at the top of this page reflects the latest revision.

7. Contact

For requests to access, delete, or export your personal data, or refund requests, email hdrtosdr.dev@outlook.com directly. For bug reports or general support, open an issue at github.com/TORlN/HDR-to-SDR/issues.

FFmpeg & ffprobe

HDR to SDR bundles standard, unmodified FFmpeg and ffprobe binaries to handle video decoding, tone mapping, and encoding. They ship exactly as built by the upstream project, I have not patched or altered their source in any way, and the application invokes them as separate external processes rather than linking against their libraries.

The bundled build enables GPL-licensed components (including libx264 and libx265), so it is distributed under the GNU GPL, version 2 or later. Full FFmpeg source is publicly available at github.com/FFmpeg/FFmpeg. If you would like the exact source matching the binaries I ship, open an issue at the GitHub link in the footer and I will provide it, consistent with my obligations under the GPL.

HDR to SDR itself

The HDR to SDR application, its GUI, conversion pipeline, and licensing logic, is open source under the MIT License. The source is public at github.com/TORlN/HDR-to-SDR, and is not affiliated with or endorsed by the FFmpeg project. This covers the v3.x and v4.x release line; version 5.0 and later may be released under different licensing terms.