Perpetual and irrevocable, and what a cancellation does not undo
Perpetual means a permission does not expire; irrevocable means it cannot be withdrawn. In a licence back the pair decides what a supplier may still do with your material after you have closed the account. As of 2026-09-22.
| Question | What the phrase answers |
|---|---|
| A perpetual licence back | The vendor's permission outlives the subscription |
| A grant with no duration stated | Ambiguous, and worth asking about |
| A grant tied to an active plan | Reads as ending with access, though rarely stated |
| Work already published | Not unmade by any of the above |
Inclusion rule. Phrases that appear in more than one vendor's permissions documents and that change what a sentence means. A phrase used by a single vendor in a single clause is described on that vendor's own page instead. Order. Reading order: where you meet it, then what it settles, then what it does not.
1The qualifier that matters after the relationship ends
Most attention goes to what a licence permits while somebody is a customer. Perpetual wording is about the period nobody plans for: after the last invoice, when the account is closed and the files are still on somebody's servers.
In a licence back that is the whole point of the word. It tells a reader that deleting the account does not withdraw the permission the vendor was given.
2The silence on the other side
Grants to customers are rarely described as perpetual, and rarely described as ending. A permission stated as a feature of a plan implicitly lives with the plan, and almost no document says what happens to output generated while it was active.
That silence is the most common gap in this whole subject. The practical answer is to record the plan in force at export, which converts a drafting gap into a filing question.
3What cancelling actually changes
Access, immediately. The status of work already published, not at all, in the sense that nobody can unmake a broadcast. What becomes uncertain is the basis for continuing to use it, and uncertainty is the thing a client review cannot price.
The sentence to look for is any statement about output made during the subscription. Where it exists it is usually short and decisive; where it does not, the question belongs in an email.
4A generator's account of it
Alongside the terms behind “Perpetual”, SceneMixer's guides describe the work itself this way:
The final cut ends on an end card: your main image plus four lines — Brand, Product name, Tagline, Call to action. The first two are read from your photo and your brief; the tagline and call to action are written with the script.
SceneMixer, The End Card (read 2026-10-13)
You can recomposite with different end-card text, and in step-by-step mode you can reshoot individual segments. The finished file can also be downloaded and shared with a link.
SceneMixer, How to Make an Ad from One Photo — “Can I change the ad after it is finished?” (read 2026-10-13)
5Where the sourced wording is
A word page, not an entry in the register: nothing above is attributed to any vendor and nothing above is legal advice. The quoted clauses are on commercial use, the column this phrase turns up in is what is owned, and the reading rules are on the reading page. Next words: Worldwide, Sublicensable, Derivative work.