What is Royalty-free?
Royalty-free means you do not owe per-sale royalties for the uses a license allows. It does not mean free of rules; the license terms still apply.
What it means for a bundle buyer
Royalty-free describes how you pay, not what you may do. A design may still be personal-use-only, POD-restricted, or capped.
The line sellers miss
Royalty-free is not the same as copyright-free or restriction-free.
Where it shows up
In stock image and design marketplace licenses.
Related: Commercial license, Personal use