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Demarker

Terms of Service

Last updated: October 10, 2026

Draft for review. This document has not been reviewed by a lawyer and is not yet in force.

Version: draft 1, 10 October 2026. Effective date: [to be set when this document is approved].

These terms cover the Demarker website, the Demarker API and everything else we offer under the Demarker name (together, the "Service"). They are a contract between you and [Legal entity to be decided] ("Demarker", "we", "us"). Please read them before you upload an image, create an API key or buy credits.

1. Who we are

Demarker is operated by [Legal entity to be decided], [Postal address to be decided]. You can reach us at [email protected].

By using the Service, creating an account, ticking an attestation box, creating an API key or paying for credits, you agree to these terms and to our Privacy Policy. If you do not agree, do not use the Service.

2. Eligibility

You must be 18 or older to use Demarker. If you use it for an organization, you confirm that you can bind that organization to these terms, and "you" includes the organization.

You must not use the Service if you are located in, or ordinarily resident in, a place where we do not offer it (see section 9), or if we have previously ended your access.

3. What Demarker does

Demarker works on still images only. It does not process audio or video.

Scan (free). When you upload an image we scan it and report what we find in three layers: visible marks that we recognise as coming from known AI image generators, AI-related metadata in the file, and hidden watermarks. We cannot read hidden watermarks directly from the pixels. For those, the report shows what we infer from the file's metadata. The absence of a signal in a scan is not proof that an image carries no mark.

Quick clean. A fast clean that runs on ordinary servers. It can remove recognised visible marks from a fixed list, remove AI-provenance metadata, and disrupt certain hidden watermarks it is able to address. It keeps author and copyright fields in the file by default, and it tells you what it removed and what it kept. A limited number of Quick cleans a day is free (see section 11).

GPU pass. A paid, slower pass that rebuilds the image with a generative model to disrupt hidden watermarks. Because it regenerates the picture, the result can differ from the original, including in fine detail. Faces are re-synthesised by a separate step and can change, including in ways that make a person look different. Do not use the GPU pass if an exact likeness matters.

API. The same scan and cleaning steps for software, with keys, credits and webhooks. Section 12 has the extra terms.

What we do not do. We do not remove stock-agency previews, marketplace marks, purchase-gating overlays or artist-protection marks, and we do not offer a tool for erasing arbitrary regions of an image. We do not offer face swapping or identity change. We may refuse an image that looks like one of these, or that falls under section 6, and we may change, add or withdraw features at any time.

4. Your account

Some features need an account. Keep your sign-in details and API keys safe. You are responsible for what happens under your account, and you must tell us promptly at [email protected] if you think it has been misused. Give us accurate information, and keep one account per person unless we agree otherwise.

5. Your images: what you confirm

Before every cleaning run, on the web or through the API, you confirm the following. You make these statements again each time, and we record that you did, together with the version of the wording, the time and the job.

  • The image is yours, or you have the right to edit it.
  • You have permission from every person who can be identified in it.
  • You are 18 or older.
  • You will follow the terms of the service or tool that generated the image. Many generators set their own rules about their output and about marks and provenance data. Those rules are between you and that service, and you are responsible for following them. We do not check them for you.
  • You are responsible for the result and for how you use and publish it, including any disclosure that the law or a platform requires where it is published.

If you cannot truthfully make these statements, do not run the clean. Ticking the box or sending the API flag when it is not true is a breach of these terms.

6. Acceptable use

Demarker is for cleaning provenance marks and metadata from your own AI images. You must not use it, and must not help anyone else use it, to do any of the following.

  • Remove copyright, author or rights information without the authority of the person who holds the rights.
  • Remove, hide or alter an AI-origin label or disclosure where the law requires one, whether the requirement comes from the EU, China, India or any other jurisdiction that applies to you or to the audience.
  • Misrepresent who made an image or where it came from, including passing AI output off as human-made.
  • Impersonate a person or organization, or create a false impression about who is behind an image.
  • Defeat or avoid the disclosure rules of a platform, marketplace, contest, publisher or employer.
  • Commit fraud, deceive anyone in a way that causes harm, or do anything else unlawful.
  • Remove stock-agency previews, marketplace or classifieds marks, purchase-gating overlays, or the protective marks that artists apply to their work (for example Glaze or Nightshade).
  • Process images of people without their permission, or sexual, adult or sexually explicit content of any kind. Never upload child sexual abuse material or intimate images of someone made or shared without their consent. We will refuse them, may preserve and report them as the law requires, and may close your account.
  • Upload content you do not have the right to upload, or that infringes someone else's rights.
  • Probe, overload, scrape or reverse engineer the Service, get around quotas, limits, security or country restrictions, or create several accounts to collect free allowances.
  • Resell or sublicense the Service except as section 12 allows.

We use automated checks on uploads, including checks for adult content and for certain third-party marks. A check can refuse an image before any cleaning happens. A refusal is not charged.

7. Required disclosures

Output from Demarker may still need a label or disclosure wherever you publish or send it. The EU AI Act, rules in China and India, and the policies of many platforms and publishers can require one. Whether and how to disclose is your responsibility. We do not remove labels that the law requires, and the restrictions in these terms do not pass our own legal obligations as a provider of image tools on to you.

Output from the GPU pass may carry a machine-readable marker saying that the image was created or altered by AI. We may add such a marker, and we may change how it works. If one is present, do not remove it where the law requires it to stay.

8. Our right to refuse and to end access

We may refuse to process an image, limit or suspend your use, withhold results, block an API key or close your account if we reasonably believe you have broken these terms or the law, if we need to for security or legal reasons, or if you put the Service or others at risk. Where we can and the law allows, we will tell you why. We may also change or stop offering the Service. If we stop it altogether, we will refund unused credits.

9. Where Demarker is available

Demarker is not offered in mainland China, and it is not offered in sanctioned jurisdictions, meaning countries and regions that are subject to comprehensive sanctions that apply to us (at the moment, this includes Cuba, Iran, North Korea and Syria). We do not provide it to anyone on a government sanctions list, and we may add other places where the law stops us from offering it.

In some countries we may offer the free scan but not cleaning. At the moment this applies to India [to be confirmed].

By using the Service you state that you are not located in a place where it is not offered, and that you are not on a sanctions list. We check your IP address country, and for purchases your billing country, and may block upload, checkout or API use on that basis. You must not use a VPN, proxy or other means to get around these checks. A payment from a blocked billing country is refunded and gets no credits.

10. Best effort, no guarantee

Demarker sells a processing run, not an outcome. In particular:

  • Hidden watermarks are inferred, not read. We cannot always tell whether an image carries one, and we cannot confirm that one has been removed.
  • Removing or disrupting a hidden watermark is a best-effort attempt against detectors that are closed and that change over time. A watermark may remain, or a detector may flag the image after processing. We do not guarantee a particular result, and we do not guarantee that a checker run by someone else will report anything in particular.
  • A visible mark may be only partly removed, or the area it covered may look different.
  • Metadata that we strip may be needed by some software, and some tools may stop recognising where an image came from.
  • The GPU pass can change faces and fine detail. The Quick clean can leave visible traces where a mark was filled.
  • A run can fail, return nothing to remove, or be refused.

Keep your original, and check the result yourself before you rely on it. Where a report shows which fields were removed and which were kept, treat it as a convenience and not as legal advice or a certificate.

11. Credits, payment and refunds

Credits. Paid processing uses credits. Credits are whole numbers. You buy them in one-time packs. There is no subscription. Credits do not expire. The number of credits a run needs depends on the tier (Quick clean or GPU pass) and on the size of the output, and we show it before you confirm. Prices, packs and credit costs are shown on the pricing page and at checkout and can change for future purchases.

When credits are used. Credits are used when you start a paid run. Payments are handled by a third-party payment processor, and we do not receive your full card number. You are responsible for any taxes shown at checkout or otherwise due.

Free tier. Each day we allow a small number of free Quick cleans on the web (currently three), counted per IP address and per account. It is not available through the API, and we may change it, limit it or stop it at any time. We may also grant promotional credits, which have no cash value.

Failure. If a paid run fails, leaves nothing to remove, or is deleted by you while it is still waiting to start, the credits for that run go back to your balance automatically and you pay nothing for it. If a free run fails or removes nothing, your free allowance for it is restored.

Completed runs. The charge covers a run, not an outcome (section 10). Where the app offers a free re-run or a way to report that a completed run did not work, it is described in the app at the time, and it is offered in addition to, and does not replace, the rules in this section.

Cash refunds. You can ask for a cash refund of credits you have not used. Write to [email protected] from the email address on your account or use the refund form in your account if there is one. We work out the refund from the price you paid for the credits that are still unused, and we send it back to the original payment method. Credits that have been used for completed runs are not refunded in cash.

Refunds and disputes with your bank. If a payment is refunded or disputed through the payment processor, we remove the matching credits. If that takes your balance below zero, we may pause paid processing on your account until it is back to zero or above. Please contact us before you open a dispute so that we can sort it out.

Closing your account. If you close your account, you can still ask for a refund of unused credits, except where we closed the account for fraud or a serious breach of section 6 [to be confirmed].

12. API terms

These terms apply in addition to everything else in this document when you use the API.

  • Account and keys. An API key belongs to an account that has accepted the current version of these terms, and we record that version against the key. Keep keys secret, do not share them or put them in public code, and tell us if one is exposed. You are responsible for everything done with your keys.
  • Attestation on every request. Every request that processes an image must carry the rights attestation flag described in section 5, and it must be true. If you build software that sets the flag for your own users, you must make sure that they have made the same statements, and you are responsible for them. Setting it automatically without that is a breach of these terms.
  • Resale and end users. You may build Demarker into your own product. You must not resell it as a label-removal service, offer it into places where it is not available (section 9), or give your own end users access without equivalent attestation and acceptable-use terms of your own.
  • Limits. Rate limits and in-flight job limits apply, and live keys get no free allowance. The default is 60 requests a minute per key. We may change limits to protect the Service, and we return an error when you exceed one.
  • Test keys. Test keys return sample results at no cost and do not process your images.
  • Webhooks. If you register a webhook, you are responsible for the endpoint, and we may disable it after repeated failures.
  • Revocation. We may revoke or limit a key at once if we reasonably believe it is being abused, is being used in breach of these terms, or poses a security risk.
  • Indemnity. You will indemnify us as described in section 18 for images you or your users upload without the right to do so, and for your own use of the output.

13. Your images and our licence

You keep all rights you have in your images and in the results. You give us a limited licence to store, copy and process what you upload, and to produce and store the results, only so that we can provide the Service to you, keep it secure and meet our legal duties. We do not use your images or results to train or improve AI models, and we do not use them for research. If we ever want to do that, we will ask for your separate opt-in first, and you can say no without losing any part of the Service.

Originals and results are deleted automatically on the schedule in the Privacy Policy, or earlier if you use Delete now. We keep a record of each job that does not contain the image, as described there. Deletion is subject to the exceptions for illegal content described in the Privacy Policy.

14. Our property

The Service, the Demarker name and logo, the website and our own software and documents belong to us or our licensors. We give you a personal, non-exclusive right to use the Service under these terms. Parts of the Service use open-source software and third-party models under their own licences. If you send us feedback, we may use it without owing you anything.

15. Privacy

How we handle personal information and images is described in our Privacy Policy, which is part of these terms.

16. Third parties

The Service relies on third-party providers, for example for hosting, payments, email and analytics. We are not responsible for services that you use alongside Demarker, including the generator that made your image or the platform where you publish it.

17. Disclaimers and limits of liability

Disclaimer. The Service is provided as is and as available. To the fullest extent the law allows, we disclaim all warranties, express or implied, including fitness for a particular purpose, merchantability, non-infringement, accuracy and uninterrupted or error-free operation. We do not warrant that any mark, watermark or metadata will be removed, or that any image will pass any check.

Limit of liability. To the fullest extent the law allows, we are not liable for indirect, incidental, special, consequential or exemplary damages, or for lost profits, revenue, data, goodwill or business, or for harm arising from how you use or publish an image or from a decision by a platform, publisher, client, court or regulator. Our total liability for any claim relating to the Service will not exceed the amount you paid us in the 12 months before the claim [cap to be confirmed with counsel].

Nothing in these terms limits liability that cannot be limited by law, and some places do not allow the limits above, so they may apply to you only in part.

18. Indemnity

You will defend and indemnify us, our owners, staff and providers against claims, losses, costs and expenses, including reasonable legal fees, that arise from an image you upload or process without the right to do so, from your breach of these terms, including section 5 and section 6, or from your use or publication of the results.

19. Changes to these terms

We may change these terms. If a change is material we will tell you by email or in the app before it takes effect, and the new version will show its date. If you keep using the Service after the change takes effect, you accept it. If you do not accept it, stop using the Service, and you can ask for a refund of unused credits.

20. Governing law and disputes

These terms are governed by [Governing law to be decided]. Disputes will be handled in [Venue and dispute process to be decided]. Nothing here takes away rights that you have under mandatory consumer law where you live.

21. General

These terms, with the Privacy Policy and anything we show you at checkout, are the whole agreement between you and us about the Service. If a part of them cannot be enforced, the rest stays in force. If we do not enforce a term, that does not waive it. You may not transfer your rights under these terms without our consent. We may transfer ours as part of a merger, sale or reorganisation. We give you notice by email to the address on your account or in the app.

22. Contact

Questions about these terms, refund requests and legal notices: [email protected].

[Legal entity to be decided]

[Postal address to be decided]