Definition of copyright
Copyright protects original works of authorship—writing, software source code, music, photos, video, and more—once they are fixed in a tangible form. It is a limited-time exclusive right, not ownership of ideas themselves. For how long protection lasts, see copyright duration by country.
What copyright protects
- Literary and textual works (including many websites and documentation)
- Musical works and, separately in many systems, sound recordings
- Dramatic, choreographic, pictorial, graphic, and sculptural works
- Audiovisual works and motion pictures
- Architectural works (where recognized)
- Software as a literary work in most modern systems
Works not protected by copyright
Classic examples of unprotected subject matter include pure ideas, facts, methods of operation, blank forms with no original expression, and short phrases or titles standing alone. Works already in the public domain are free of copyright restrictions (other laws may still apply). False claims over public domain material relate to copyfraud.
Fixation requirement
In systems such as US law, protection generally attaches when original expression is fixed in a tangible medium—written, recorded, saved to disk, or otherwise embodied long enough to be perceived or reproduced. Unfixed improvisation may fall outside copyright until recorded.
Automatic protection vs formalities
Berne members generally do not require registration or notice for protection to arise. Notices (© year owner) and registration still matter strategically—especially in the US for litigation posture. See copyright notice and registration.
Berne Convention (overview)
The Berne Convention coordinates minimum standards and national treatment among member states. It is why foreign works often receive protection without local formalities. Treaty membership lists change; cite WIPO’s live treaty database rather than outdated mirrors.
Copyright vs DMCA procedures
Copyright answers “who owns exclusive rights, for how long?” The DMCA’s notice-and-takedown rules answer “how do online service providers handle infringement claims?” A platform removal is not a court judgment on ownership. Operational guides: reporting DMCA, counter-notice, Lumen Database.
FAQ
What is copyright in simple terms?
Copyright is a set of exclusive legal rights that let creators (or right holders) control how original works of authorship are copied, distributed, displayed, performed, or adapted for a limited time.
What is not protected by copyright?
Ideas, procedures, methods, systems, facts, titles alone, and works not fixed in a tangible medium of expression are generally outside copyright. Public domain works are no longer under copyright (or never were).
Do I need to register copyright to be protected?
In Berne countries, protection is automatic when requirements are met. In the United States, registration is not required for protection to exist, but it is often required before filing a civil infringement lawsuit and affects available remedies.
Related: Knowledge base ·Hyperlinking & framing ·AI and copyright ·Duration by country ·Notice & registration ·Blog