What Counts as “Fair Use” in Copyright Law? A Practical Guide

Person in dark suit pointing at glowing registered trademark symbol with laptop in background.

Posting a photograph while crediting the photographer does not make the use legal. Copying a few seconds of a video does not either, nor does labeling a post “for educational purposes.” Fair use can permit use of copyrighted material without permission, but it is not based on a word count, percentage, or disclaimer.

What Are the Four Fair Use Factors?

Under Section 107 of the Copyright Act, courts evaluate fair use case by case. The statute identifies criticism, commentary, news reporting, teaching, scholarship, and research as examples, but none automatically qualifies. The outcome depends on how four factors apply to the specific use.

1. The Purpose and Character of the Use

The first factor asks why and how the material was used. Courts consider whether the use is commercial or nonprofit and whether it serves a different purpose from the original.

A review that quotes part of a novel to analyze the author’s technique presents a stronger fair use argument than a post that reproduces the same passage simply to entertain readers. Adding commentary or criticism can help, but changing the format or adding a few words does not necessarily make the use transformative.

In its 2023 Warhol decision, the Supreme Court held that licensing an image for a magazine illustration served substantially the same commercial purpose as the original photograph. The ruling shows why courts examine the challenged use rather than creative changes alone. Commercial use is not automatically unfair, but it can weigh against fair use.

2. The Nature of the Copyrighted Work

Fair use is generally more likely when the source is factual, like a news report or technical manual, than when it is highly creative, like a song, film, novel, illustration, or photograph.

Publication also matters because authors ordinarily have an interest in deciding when an unpublished work first reaches the public. Still, no single fact controls the analysis.

3. The Amount and Importance of the Material Used

This factor looks at how much was copied and how important that portion was. Using a small excerpt generally favors fair use unless it captures the “heart” of the original. Courts sometimes permit use of an entire work when the new purpose requires it, although the remaining factors must still be considered.

There is no 10 percent rule, 30-second rule, or fixed word count that guarantees protection. The question is whether the amount used was reasonable for the new purpose.

4. The Effect on the Market

The final factor asks whether the new use harms an existing or reasonably foreseeable market for the copyrighted work. A use that replaces the original or avoids paying for a customary license is less likely to be fair. Courts also consider what would happen if similar unlicensed uses became widespread.

Reproducing a licensed photograph in an advertisement can compete with the photographer’s licensing business. Quoting a short passage to criticize an article’s conclusions is less likely to replace the original, but the result still depends on the complete context.

Common Fair Use Mistakes

Suppose you post someone else’s photograph and add “Credit: [photographer’s name]” to the caption. That is attribution, not permission, and it does not establish fair use. Removing a copyright notice, adding “no infringement intended,” or posting from a personal account does not resolve the legal question either. Material found through a search engine is not necessarily free to reuse.

Before publishing someone else’s work, consider why you need it, how much is necessary, and whether your use could replace the original or a customary license. If the answer remains unclear, requesting permission or using licensed or public-domain material is generally the safer choice.

Hand holding yellow and black hammer breaking a white registered trademark symbol on gray background.

You Received a Letter. What Should You Do?

Fair use disputes turn on specific facts, and small differences can change the outcome. If you received a cease-and-desist letter, takedown notice, or lawsuit, do not delete records, rush a response, or assume the sender is correct before evaluating the claim.

At The Russell Firm, you work directly with attorney Erin Russell through resolution. Erin can evaluate the disputed use and help determine whether fair use in copyright law, licensing, or another response fits your situation. Contact The Russell Firm today to discuss your options confidentially.