Terms of Service

Last updated: October 20, 2026

These terms govern every Proofbound engagement. Using the Proofbound platform, or paying any Proofbound quote or invoice that references these terms, constitutes acceptance of them. No signature is required.

1. Who we are, and the words we use

"Proofbound," "we," and "us" mean Ensembio, Inc., a Washington corporation doing business as Proofbound. "You" are the person or organization using our services — the account holder, or the client named on a quote or invoice. "The Work" is the book or related deliverable we produce for you.

We serve customers two ways, and some terms below apply to only one of them:

• Self-Serve Services — book generation you purchase and run yourself through the Proofbound platform, at published prices.
• Commissioned Work — a book or deliverable produced under a written quote or invoice describing the engagement, at a quoted fee.

Sections that apply to only one are marked. Everything else applies to both. Where a quote or invoice for Commissioned Work conflicts with these terms, the quote or invoice controls for that engagement.

You must be at least 18 years old and able to form a binding contract to use our services. Proofbound operates from the United States under United States law, including the First Amendment. We do not tailor the service or its content rules to the laws of other countries. If you use the service from elsewhere, you do so at your own risk and are responsible for complying with your local law.

2. What we do

We research, write, edit, design, and typeset the Work to the specifications you provide — subject, audience, length, named author, tone, format. Our services include content generation, editing, formatting, cover design, and publishing assistance. Print fulfillment, if included, is billed at quoted cost, with a firm quote before each order.

AI-generated content. Prose, images, and cover artwork are produced with generative AI from your instructions and materials. AI output can contain errors, invented facts, misattributed quotations, or passages that resemble existing works. You must review the Work before you rely on it, print it, or publish it. We make no warranty that the Work is accurate, original, or protectable by copyright, and we assign only such rights in it as we hold.

3. Our role, and yours

Proofbound provides writing, editing, typesetting, printing, and retail services on your instructions. You decide what the Work says, you approve it, and you are responsible for it. We do not endorse, verify, or adopt any author's views, claims, or statements of fact, and the opinions expressed in any Work are the author's alone. The Proofbound name or logo on a copyright page identifies the imprint and producer; it does not make Proofbound the author of the Work or responsible for its contents. Books offered in the Proofbound shop are offered by their authors; Proofbound prints and fulfills them.

4. Accounts

Self-Serve ServicesTo use certain features you must create an account. You agree to:

• Provide accurate, current, and complete information
• Maintain and promptly update your account information
• Maintain the security of your account credentials
• Accept responsibility for all activities under your account
• Notify us immediately of any unauthorized use of your account

5. Your materials

You may supply source material — manuscripts, notes, transcripts, recordings, images. You confirm you own or have permission to use everything you supply, and that none of it is confidential to a third party, defamatory, or infringing. We may rely on your materials and instructions without independent verification.

6. Acceptable use

You agree not to submit, generate, publish, or sell through Proofbound any content that:

• Is pornographic or sexually exploitative, including any visual depiction of sexual acts
• Sexualizes a minor, or anyone who appears to be a minor, in any way
• Incites violence against people based on race, ethnicity, national origin, religion, sex, gender identity, sexual orientation, age, disability, or medical condition
• Makes a credible threat of physical harm to any person
• Uses private information to intimidate, harass, or threaten others
• Promotes harmful or illegal activities
• Is defamatory
• Impersonates another person or misattributes authorship
• Infringes copyright, trademark, publicity, or privacy rights — including plagiarism and the unauthorized reproduction of another person's work
• Contains malware or harmful code, or is spam

We may refuse service, remove content, or unpublish a book from the shop at any time, at our sole discretion, with or without notice. When the removal is for a violation of this section, no refund is owed. We terminate the accounts of repeat infringers.

7. Copyright complaints

We respond to notices of claimed copyright infringement under the Digital Millennium Copyright Act (17 U.S.C. §512). If you believe material on the Proofbound platform or in the Proofbound shop infringes your copyright, send a notice to our designated agent:

Your notice must include: (1) your physical or electronic signature; (2) identification of the copyrighted work you claim has been infringed; (3) identification of the material you claim is infringing, with enough detail for us to locate it, such as the book's shop URL; (4) your name, address, telephone number, and email address; (5) a statement that you have a good-faith belief that the use is not authorized by the copyright owner, its agent, or the law; and (6) a statement, under penalty of perjury, that the information in the notice is accurate and that you are the copyright owner or authorized to act on the owner's behalf.

On receiving a valid notice we will remove or disable access to the material and notify the account holder. The account holder may send us a counter-notice containing: their physical or electronic signature; identification of the material that was removed and where it appeared; a statement under penalty of perjury that they have a good-faith belief the material was removed by mistake or misidentification; their name, address, and telephone number; and a statement that they consent to the jurisdiction of the federal district court for the district where their address is located (or King County, Washington, if outside the United States) and will accept service of process from the person who sent the original notice. If we receive a valid counter-notice we forward it to the complaining party and may restore the material in ten to fourteen business days, unless the complaining party tells us it has filed a court action seeking to restrain the alleged infringement.

Knowingly misrepresenting that material is infringing, or that it was removed by mistake, may make you liable for damages under 17 U.S.C. §512(f).

8. Fees and payment

Self-Serve ServicesOur services are offered under several tiers and add-ons. Current pricing — including tiers, printing, and add-ons — is published on our pricing page, and the prices published there at the time of purchase apply to your order. We may change our pricing with notice. Payment is processed through Stripe. The Book Pass is a fixed-term access pass, not a recurring subscription; it does not auto-renew.

Commissioned WorkFees are stated on your quote or invoice, which together with these terms forms the service agreement for your engagement. The creation fee for each title is due before work begins; print costs are invoiced at order placement. Included revision rounds are stated on the quote and must be requested within ninety days of first delivery of the complete proof; additional rounds are billed at the quoted rate. Amounts more than thirty days past due may pause work in progress.

9. Review and acceptance of the Work

You are the final editor. Before printing or publication, review the complete proof — every page, including facts, names, quotations, and attributions.

Commissioned WorkAny of the following constitutes acceptance of the Work: (a) your written approval; (b) your authorization of a print run or publication in any form; or (c) thirty days passing after delivery of the final proof without written objection. Acceptance is final.

Self-Serve ServicesOrdering a print run, downloading final files, publishing the Work to the shop, or publishing it anywhere else constitutes acceptance of it.

10. Rights and ownership

Your content. You retain all rights to the material you submit. You warrant that you have the right to submit it and that it does not infringe third-party rights.

The Work. Upon acceptance and full payment, we assign to you all right, title, and interest that we hold in the Work, worldwide and in perpetuity. Publish, sell, adapt, translate, or license it freely, with no further payment to us.

Our platform. Proofbound retains all rights to our platform, technology, and methodologies. You may not copy, modify, or reverse engineer our services.

Commissioned WorkWe retain the right to display the Work — cover and brief excerpts — in our portfolio and marketing, unless you ask us not to in writing. We do not display self-serve books in our marketing without your permission.

11. After acceptance, the Work is yours — entirely

Once you accept the Work, you assume sole responsibility for it: the accuracy of its contents; clearance of third-party rights (copyright, trademark, publicity, privacy); compliance with any law, regulation, or professional standard that applies to you; and all consequences of its publication, distribution, and use. Editorial assistance is not legal review — we do not verify facts, clear rights, or provide legal, financial, or compliance advice.

12. Indemnity

You will defend us and hold us harmless from any third-party claim, and the costs of defending it, arising from the contents of the Work, materials you supplied, your use of our services, your violation of these terms, or your publication or use of the Work after acceptance — including any claim that the Work infringes a third party's rights or is defamatory, obscene, or otherwise unlawful.

13. No warranty; limit of liability

After acceptance, the Work is provided as-is, with no warranty of any kind. Our total liability, on any theory, is limited to the fees you actually paid for the Work or service in question. Neither party is liable for indirect, incidental, special, or consequential damages, including lost profits.

14. Refunds

Self-Serve ServicesWe stand behind our work. If you are not satisfied with your book, we will work with you to address concerns. Refunds are considered on a case-by-case basis and may be provided at our discretion within 30 days of delivery. Fees are otherwise non-refundable.

Commissioned WorkFees already paid are not refunded, and fees for work already performed remain due.

15. Shop purchases

Books in the Proofbound shop are written and offered for sale by their authors. Proofbound prints each copy on demand and ships it; the listed price includes printing, and shipping is charged separately at the rates shown at checkout. Because every copy is printed to order, we cannot accept returns for change of mind. If a copy arrives damaged or defective, or you receive the wrong book, contact us within seven days of delivery with photos and we will print and ship a replacement at no cost. Proofbound is not responsible for the content of any book sold in the shop; see section 3.

16. Service availability

We strive to maintain high service availability but do not guarantee uninterrupted access. We may suspend or terminate services for maintenance, security, or other operational reasons.

17. Ending an engagement

Self-Serve ServicesEither party may terminate at any time. Upon termination your access to our services will cease, but you retain rights to any books already delivered to you.

Commissioned WorkEither party may end an engagement with thirty days' written notice. You receive all work completed to date; fees already paid are not refunded, and fees for work already performed remain due.

Each party keeps the other's non-public information confidential, during and after the engagement.

18. Privacy

Your privacy is important to us. Please review our Privacy Policy, which also governs your use of the service, to understand our practices.

19. Governing law and disputes

Washington law governs these terms, without regard to conflict of law principles. Venue for any dispute is King County, Washington.

20. General

These terms, together with your quote or invoice, are the entire agreement for the engagement and replace prior discussions. Changes require a writing agreed to by both parties, except that we may modify these terms for the Self-Serve Services with notice of significant changes; continued use after a change constitutes acceptance. If any term is found unenforceable, the rest remain in effect.

21. Contact

If you have any questions about these Terms of Service, please contact us at: