Hand drawn picture of green triangle sin cos tan formula. Trigonometry. Handwritten font. Illustration for education. Concept, Math teaching. Geometric shapes and trigonometric lesson. stock illustration...

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What's a royalty-free license?

Royalty-free licenses let you pay once to use copyrighted images and video clips in personal and commercial projects on an ongoing basis without requiring additional payments each time you use that content. It's a win-win, and it's why everything on iStock is only available royalty-free — including all Angle images and footage.

What kinds of royalty-free files are available on iStock?

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How can you use royalty-free images and video clips?

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Learn more about royalty-free images or view FAQs related to stock illustrations and vectors.