What is fair use, and how does it affect artists?

Few topics cause as much confusion among artists as fair use. People treat it like a magic password — say “fair use” and you’re allowed to use anything. That’s not how it works. Fair use is a narrow, fact-specific exception, and in some countries an equivalent called fair dealing is narrower still. Understanding what it actually covers protects you both ways: when others use your work, and when you’re tempted to use theirs.

This is general information rather than legal advice, and it varies a great deal by jurisdiction. The US doctrine is unusually flexible; many other countries are far more restrictive. Treat the principles below as a starting point, not a guarantee.

Fair use vs fair dealing: the same idea, different rules

Both fair use and fair dealing are exceptions to copyright — situations where the law allows limited use of a protected work without the owner’s permission, to balance creators’ rights against the public interest in things like commentary, criticism, news and teaching.

The key difference is breadth. US fair use is an open-ended standard: almost any kind of use can potentially qualify, and a court weighs it against a set of factors. By contrast, the UK and many other countries use fair dealing, which only applies to specific, listed purposes — for example, criticism, review, quotation, news reporting, and parody or caricature. If your use doesn’t fall within one of those listed categories, fair dealing simply doesn’t apply, no matter how reasonable the use feels.

The four factors behind US fair use

In the US, courts weigh four factors together. No single one decides the outcome; they’re balanced against each other:

• Purpose and character of the use: is it commercial or non-profit, and — increasingly the most important question — is it transformative? A transformative use adds something new, with a different purpose or meaning, rather than just republishing the original.
• Nature of the copyrighted work: using factual or published material leans more towards fair use than using highly creative or unpublished work.
• Amount and substantiality used: borrowing a small, non-central portion is more likely to be fair than taking the heart of the work — though even a small but central part can weigh against you.
• Effect on the market: if your use competes with or substitutes for the original, or harms its potential market or licensing income, that weighs heavily against fair use.

“Transformative use” deserves a flag because it’s so often misunderstood. Adding a filter, changing the colours, or putting an image on a different product is usually not transformative on its own. Courts look for a genuinely new purpose or expression — commentary, parody, or something that doesn’t substitute for the original. Importantly, transformative use is largely a US concept; it isn’t part of how UK fair dealing is assessed.

The myths that get artists into trouble

Most fair-use disputes start with a sincere misunderstanding. The big ones to retire:

• “I credited the artist, so it’s fine.” Attribution is good manners and may matter for moral rights, but it does not turn an infringing use into a permitted one. Credit is not permission.
• “It’s non-commercial, so it’s allowed.” Non-commercial use can help under the first factor, but it doesn’t automatically qualify. Plenty of non-commercial uses still infringe.
• “I changed it by more than X%.” There’s no percentage rule. The 10% or 30% thresholds you’ll see online are myths; the analysis is about substance and context, not a number.
• “It was only up for a short time / I took it down when asked.” That can reduce damage, but it doesn’t retroactively make the original use lawful.

This is precisely the line Realform refuses to cross. Our agents only ever compose your existing, finished artwork onto products — they never generate new images trained on or imitating someone else’s style. Because nothing is synthesised from other people’s work, there’s no murky fair-use question to argue about: every image on a Realform product traces back to a real human author who owns it. Composition keeps provenance clean by design.

Why it’s a defence, not a permission

Here’s the part that surprises people most. Fair use isn’t a box you tick in advance. It’s a defence you raise after the fact — typically only resolved properly if a dispute reaches a court, which weighs the factors on the specific facts. Two similar-looking uses can come out differently. That uncertainty is exactly why relying on fair use is risky for anything important: you may be right, but you can’t know for sure until someone tests it, and testing it is expensive.

For your own work, the same logic cuts the other way. If someone reuses your art and claims fair use, that claim isn’t automatically valid — it depends on the same multi-factor analysis, and a market-harming, non-transformative copy will usually struggle.

Practical guidance for artists

When in doubt, the safest route is permission: licence the work, use material that’s openly licensed or in the public domain, or create your own. If you genuinely intend to rely on an exception — say, for genuine commentary or parody — keep your use proportionate, keep the original clearly distinct from your new purpose, and avoid undercutting the original’s market. And if anything significant is at stake, get advice from a qualified professional in your country, because the answer really does change from one jurisdiction to the next.

None of the above is legal advice — it’s a plain-English overview to help you ask better questions before you act.