Do You Have to Credit a Museum for a Public-Domain Image?
Legally, no — CC0 waives attribution entirely. But there are four concrete reasons to credit anyway, and a right way to write the line.
Quick answers
- Do I have to credit the museum for a CC0 image?
- No. CC0 waives the attribution requirement entirely, and a public-domain work carries no copyright to attribute in the first place. Museums request credit as a courtesy, and that request is not legally enforceable.
- What is the correct way to credit a museum image?
- Name the artist, the title, the date, and the holding institution, then note the rights status. For example: Johannes Vermeer, The Milkmaid, c. 1660. Rijksmuseum, Amsterdam. Public domain. Many museums also publish a preferred credit line on the object record.
- Does crediting a museum give me permission to use the image?
- No. Attribution and permission are unrelated. Crediting a source does not make an unlicensed use lawful, and omitting credit does not make a public-domain use unlawful.
- Should I credit on merchandise and prints too?
- It is optional but useful. A small credit line on the reverse of a print or on a product card raises perceived provenance and value, and costs nothing since no royalty or permission is involved.
No. You don't have to. This is one of the few questions in the area with a genuinely clean answer: CC0 waives attribution outright, and a work whose copyright has expired has no copyright holder to attribute. You can publish a Vermeer with no credit line and break no law anywhere.
Which raises the more interesting question — why do the people who work with these collections most credit them anyway, every time?
Why the law says no
Two separate routes reach the same place:
- Expired copyright. No rights holder exists, so there is no attribution right to exercise. This differs from moral rights in some jurisdictions, which can persist around authorship claims — but those bear on misrepresenting who made a work, not on whether you name the museum that photographed it.
- CC0. Creative Commons Zero is a deliberate, maximal waiver. Compare CC BY, where attribution is a licence condition and omitting it is a breach. Museums choose CC0 precisely to remove that friction. Public Domain vs. CC0 covers the distinction.
Museums do publish requested credit lines. "Requested" is the operative word: a courtesy ask, not a licence condition, and not enforceable.
Four reasons to credit anyway
1. It is your own audit trail
Two years from now, a client asks where an image came from. A credit line answers in three seconds; a filename does not. When a print-on-demand platform or a publisher's legal desk queries a work, the credit line is the start of your evidence — and the museum's object record, which you noted at the time, is the rest of it.
2. It survives the image being copied
Images travel. A crop of your layout ends up on a mood board, then a blog, then someone's product. The credit line is the only thing that keeps the work traceable back to a collection where the next person can find the real file rather than a degraded eighth-generation copy.
3. It is worth money on the object
"Johannes Vermeer, The Milkmaid, c. 1660. Rijksmuseum, Amsterdam." printed on the reverse of a poster does real work: it signals provenance, it turns a decorative object into a documented one, and buyers pay for that. It costs a line of six-point type.
4. Open access is a budget line
Every one of these programmes was argued for internally against people who wanted to sell licences instead. Visible credit is the evidence that the programme is used — it is, unglamorously, how the next digitisation round gets funded.
Writing the line
The complete form, for editorial or catalogue use:
- Artist, with dates if the context is scholarly.
- *Title*, in italics.
- Date, with "c." where the record is approximate.
- Holding institution and city.
- Rights status — "Public domain" or "CC0".
So: Rembrandt van Rijn, Self-Portrait, 1660. The Metropolitan Museum of Art, New York. CC0.
For a product card or a social post, compress to artist, title, and museum. On a densely designed layout, a collected credits block at the end is standard practice and entirely sufficient.
What a credit line does not do
This one catches people, so it's worth stating flatly: attribution is not permission. Naming a source does not make an unlicensed use lawful. If an image is still in copyright, a credit line does not fix it — you need a licence. Conversely, if the work is genuinely public domain, omitting credit doesn't make the use unlawful. The two questions are independent, and conflating them is how people talk themselves into using an image they shouldn't. How to Tell If an Artwork Is in the Public Domain is the check that actually matters.
Where to find the details you need
A credit line is only as good as the metadata behind it, and museum object records vary in how easy they make this. In Musist, every object page carries the artist, title, date, source institution, credit line, and a rights badge in one block — everything a full attribution needs, without hunting through three panels of a museum interface.
Browse the collections, open any work for deep-zoom and its full record, or across The Met, the Rijksmuseum, and the Smithsonian to see how differently three institutions describe the same kind of object.
- licensing
- attribution
- cc0
- public domain