Overview
IronPDF depends on SixLabors NuGet packages, and SixLabors changed its licensing model across versions. This FAQ explains whether you need to take any action to stay compliant. Short answer: you don't.
Frequently Asked Questions
1. Do I need to separately comply with the SixLabors commercial license?
No. For the 3.x.x SixLabors versions that support later .NET releases, a commercial license applies — but IronPDF already covers this on your behalf. No additional licensing action is required on your end.
2. What license applies on .NET Framework?
For the versions that support .NET Framework, SixLabors continues to use the Apache license.
3. Are the Apache-licensed versions still supported?
Yes. SixLabors continues to support the 2.x.x Apache-licensed versions, with bug-fix releases still being made available.