An ebook is read on hundreds of device and app combinations: Kindle e-readers, the Kindle app on phones and tablets, Apple Books on iPhone and iPad, Kobo e-readers, Google Play Books, Nook and many more. Each interprets the file slightly differently, and each lets the reader change the font, the size, the margins and the colour. A file that looks fine in one place can break in another: a missing contents link, a heading that vanishes, an image that spills off the screen, a table that cannot be read, a drop cap that overlaps the text. An ebook quality check tests the book where readers will read it.
Ebook Quality Check that shows you how your ebook really looks before readers do
Ebook quality check checks your ebook in Kindle Previewer, Apple Books, Kobo and on device previews for layout, links, images, fonts and EPUB errors, and returns a written report before you publish. A specialist works through your ebook quality check job with you, checks each step against the platform's current instructions and confirms the result before you publish, all at a fixed price. Choose a package to see what ebook quality check costs for your own book.
Most ebook quality check jobs are delivered in about 3 working days.
- Kindle Previewer check
- Device previews
- Written report
Key facts
- $179Starting price for the ebook quality check, fixed in advance
- 1 specialistOwns your ebook quality check from start to finish
- 2 to 3 daysTypical turnaround for the first review of the ebook quality check
What an ebook quality check actually involves
The check combines tools and eyes. We run validation, which finds structural errors. We open the file in Kindle Previewer, which emulates Kindle devices, and in real apps on phone, tablet and e-reader where we can. We change fonts, sizes and themes, including dark mode, to see how the text adapts. We test every link in the contents, the footnotes and the back matter. We check images for size, clarity and alternative text. We look at special elements such as tables, lists, block quotes and poetry. We verify the metadata and the cover.
You receive a report that lists each issue with the device or app where it appeared, a screenshot, and a recommendation. We separate problems that block publication from those that are cosmetic or specific to one device. Where you ask, we fix them. We also offer a final check of the corrected file. The service suits authors who built their own ebooks, authors who received files from others and authors who want confidence before a launch.
We start every ebook quality check job with an audit. We open your file or manuscript, list what is already right, what is wrong and what needs a decision from you, and send that back before any work begins for the ebook quality check. The audit is why there are no surprises: you know the scope, the price and the schedule, and you know which of device testing and validation is likely to need the most care.
Our ebook quality assurance service gives an ebook layout error check and an ebook quality check for EPUB. Ebook quality check pricing is shown before you order.
Why an ebook quality check matters
Ebook quality check decides whether the work is accepted
Readers use many devices, and each exposes different faults that the author never sees on a single screen. For authors who want their book live without trial and error, the difference shows in how the finished ebook quality check work behaves when it is opened, printed or uploaded, not in how it looks on the screen where it was made.
The details carry the quality
Retailers differ in what they tolerate, so a file that passes one may fail another. We check each of device testing, validation and navigation and links individually, because a fault in one is easy to miss when the rest of the file looks right.
Doing it once, properly, saves time
A written report gives you a clear list of fixes and a record of what was tested. Putting device testing and validation right once is cheaper than correcting them in every later edition.
Test it on every reader before they do
An ebook quality check tests your file the way readers will read it. We open it in Kindle Previewer, Apple Books, Kobo and other device previews, check the table of contents, links, images, fonts and layout, and run it through EPUBCheck for technical errors.
Test ebook before publishing work includes an ebook proofreading format check, in which we look for layout problems such as odd breaks, missing italics, inconsistent headings and image sizing. The Kindle Previewer check covers phone, tablet and eReader views, and an ebook device preview check adds Apple Books and Kobo.
Ebook quality assurance ends with a written report that lists every issue and says how to fix it, or we fix it for you in a package. We check the EPUB for layout errors, validate the file and test both the reflowable text and any fixed-layout pages, so that you publish with confidence.
- Kindle Previewer, Apple Books and Kobo checks
- A table of contents and link test
- A written report of every issue
The first decision in an ebook quality check
Test and report
A report with screenshots. It suits authors who will fix the file themselves. We choose this route when the book leans on device testing, and we show a sample before the whole ebook quality check job proceeds.
Test and fix
A report plus corrections. It suits authors who want a finished file. We choose this route when validation are central to how the book is used, and we explain the cost and schedule consequences before you commit.
What we check during your ebook quality check
These are the decisions we make on every ebook quality check job, and the reason for each one.
See the price of your ebook quality check in a minute
Pick a package to see what ebook quality check costs for your own book, with the delivery estimate and extras shown before you decide.
Build my priceHow an ebook quality check job runs
Send
You send the files and tell us what you need from the ebook quality check job, including where you plan to publish and any deadline. For a ebook quality check, we confirm the scope and the price. You are never left guessing what comes next, because we confirm each stage of the ebook quality check job in writing.
Audit
We examine the file, list what is correct and what must change, and send a short note with any decisions we need from you in this ebook quality check order. If something unexpected turns up at this stage, we tell you at once and agree the fix before continuing with your ebook quality check.
Plan
We agree the specification, including how we will treat device testing and validation, and confirm the schedule. For a ebook quality check, this stage is where most questions arise, so we leave time for them in the schedule. You are never left guessing what comes next, because we confirm each stage of the ebook quality check job in writing.
Build
We carry out the work, applying defined styles and settings, and fixing faults at their source rather than covering them for the ebook quality check. You are never left guessing what comes next, because we confirm each stage of the ebook quality check job in writing.
Check
For your ebook quality check, we validate, preview and review the result against the specification, and compare the text with your manuscript. If something unexpected turns up at this stage, we tell you at once and agree the fix before continuing with your ebook quality check.
Deliver
For a ebook quality check, you receive the files, the specification and the change log, with support if a platform queries the file. For a ebook quality check, this stage is where most questions arise, so we leave time for them in the schedule.
A publishing job before and after help
With your ebook quality check, the same book, first as an unfinished or failed job and then as a finished one. For a ebook quality check, the manuscript is the same, and only the second is live.
- 1An ebook tested on one device only
- 2A broken table of contents
- 3Errors that only readers notice
- 1An ebook tested on every major reader
- 2A working contents and links
- 3A report before publication
- 3problems found in the first review
- 3fixes checked in the final review
- 1named specialist owning every fix
- Fixedprice confirmed in the calculator before you order
Wide compatibility
It works on each reader.
Working navigation
Contents and links function.
No surprises
Issues are found first.
Build your ebook quality check price
An ebook quality check opens your file on real devices and in validators, so the problems your readers would meet are found before they leave a bad review. Tell us how many ebooks you want checked, how many stores they go to and how ready the files are, and the fixed price builds below.
Beyond our online packages? Let us quote it properly.
A catalogue of more than six titles or a fixed-layout ebook is priced individually so nothing is missed. Send us your ebook quality check files and a specialist replies with a fixed price and delivery date.
The price covers testing and the fixes described. Redesign, cover work, ISBN purchase and printing are not included.
Ebook Quality Check cost at a glance
The table shows the cost of ebook quality check for each package, with the base price, delivery time and the kind of job that fits. The calculator adds extras to your ebook quality check for an exact total.
Ebook Quality Check compared with the alternatives
Ebook Quality Check portfolio
Finished examples of Ebook Quality Check work from our portfolio, each one built for a real book.

Responsive Text
A finished Responsive Text example from our Ebook Quality Check work.

Contents Check
A finished Contents Check example from our Ebook Quality Check work.

Image Check
A finished Image Check example from our Ebook Quality Check work.

Accessibility Review
A finished Accessibility Review example from our Ebook Quality Check work.

Typography Check
A finished Typography Check example from our Ebook Quality Check work.

Final Validation
A finished Final Validation example from our Ebook Quality Check work.
The standard we hold every ebook quality check to
Fix causes, not symptoms
Our ebook quality check work corrects the underlying structure, so the same problem does not return when the text changes. It is a standard we hold on every ebook quality check job, whatever the price of the package or the length of the book.
Evidence over assurance
With your ebook quality check, we supply the validation or preflight report with your files, so a clean result is something you can see. You can check it for yourself, because the evidence comes with your files in this ebook quality check order. For a ebook quality check, holding to it costs us time, and it saves you the cost of repairs later.
Plain communication
We explain what we found and what we did in plain language, and we tell you honestly when something is outside what the file can support on this ebook quality check project. For a ebook quality check, holding to it costs us time, and it saves you the cost of repairs later.
The pre-delivery checklist for an ebook quality check
Every item below is verified on your ebook quality check before it leaves our desk.
- Audit completed and agreed with you
- Device testing checked and corrected
- Validation checked and corrected
- Navigation and links checked and corrected
- Type and images checked and corrected
- Validation or preflight run with the report supplied
- Previewer and device checks completed
- Text compared with the approved manuscript
- Specification and change log delivered
How we approach an ebook quality check
Structure first
In ebook quality check, device testing and validation are built into the file, not painted on top. We treat structure as the foundation and appearance as the finish, because structure is what survives edits and platform changes with your ebook quality check.
Checked, not hoped
For your ebook quality check, a file is not finished because it looks right on our screen. For your ebook quality check, it is finished when the validator, the preflight and real devices agree, and when we can show you the evidence. It is the principle behind most of what we do on ebook quality check, and the reason we prefer to explain our choices rather than hide them.
Your files stay yours
We deliver source files and a specification, and we never lock your ebook quality check work inside a proprietary format. On this ebook quality check job, if you hire someone else later, they can pick up where we stopped. It is the principle behind most of what we do on ebook quality check, and the reason we prefer to explain our choices rather than hide them.
What authors say about our ebook quality check
Verified reviews from authors who used our ebook quality check service.
Good publishing support overall. The KDP metadata setup was thorough. One category selection needed updating after initial launch but it was corrected promptly. The book is performing well in its target categories.
My KDP file was rejected with a technical error message I could not understand. Book Formatting Experts diagnosed the problem immediately — a bleed issue on three pages — and corrected it the same day. Approved first time.
My YA novel needed to reach both English-language and Japanese readers. The multi-region distribution setup was handled correctly across all required platforms. International sales have exceeded my expectations.
Good support throughout the KDP upload process. The metadata setup and category selection were explained clearly. One pricing setting needed adjustment after initial setup but it was corrected quickly.
The formatting error fix service saved my launch. My original formatter had made margin errors causing repeated rejection. Book Formatting Experts identified and fixed every issue within 48 hours. My launch was back on schedule.
Navigating IngramSpark's requirements for the first time felt overwhelming. The upload assistance handled everything — metadata, pricing setup, distribution channels. My children's book reached bookstores within two weeks.
My cookbook needed to be set up across multiple platforms simultaneously. The publishing support team handled every submission — KDP, IngramSpark, and Apple Books — with different requirements for each. Flawlessly executed.
As a first-time author, the technical side of self-publishing was genuinely daunting. The consultation covered every decision — platform choice, pricing strategy, metadata, and distribution. I launched with genuine confidence.
Getting historical fiction placed in the right categories on Amazon and IngramSpark required strategic metadata. The team understood the genre classification and the book reached the right readers from the first week.
The publishing readiness review identified four issues in my manuscript that would have caused rejection. Each was clearly explained and quickly resolved. My book launched without any technical complications.
The website positions me as an authority in my field without feeling stiff or corporate. The testimonials section, media page, and book overview all build credibility effectively. Exactly what a nonfiction author needs.
Good website design overall. The mobile experience is excellent. I requested a few content changes after delivery which were handled efficiently. My reader newsletter opt-ins have increased noticeably since launch.
Literary fiction covers require a completely different approach from genre fiction. The design is elegant, restrained, and communicates the literary quality of the book. I am genuinely proud to show it to readers.
Really good cover design. The atmospheric quality matched my book's tone well. I requested one colour adjustment in revisions which was done quickly. The final cover looks exactly like a major publisher's release.
Good eBook formatting work. The tables converted cleanly and the navigation works well. One heading level needed a style adjustment but it was corrected quickly. The file performs well on all platforms.
My fantasy EPUB had complex nested structures with chapter epigraphs and world-building inserts. The EPUB handles every level cleanly and reads beautifully on Kindle and Apple Books.
Good formatting work overall. The chapter headers felt slightly generic at first but after one revision round they had exactly the right tone for my YA readership. File passed KDP without any issues.
My bilingual poetry collection had French and Wolof on facing pages. The layout handled both languages with the right visual balance. One alignment correction in revisions and it was exactly right.
Ebook Quality Check: questions answered
These are the questions authors ask most about ebook quality check, including steps, errors and cost. If your question about the ebook quality check is missing, request a quote and a specialist will reply.
What is an ebook quality check?
It is a test of your ebook on devices and apps, with a report of faults and fixes. For ebook quality check, we check the result against the platform's own rules before you see it.
How do I test an ebook before publishing?
Validate it, preview it in Kindle Previewer and open it on real devices and apps. For a ebook quality check, we keep a record of what we changed so that you can review the work.
Do you proofread ebooks?
We check format and display, not the wording, though we flag obvious errors. For your ebook quality check, the calculator on this page shows the fixed price for each package before you commit.
What is a Kindle Previewer check?
It is a test of how your file displays on Kindle devices using Amazon's tool. For your ebook quality check, if you are unsure, send the file and we will tell you what the job involves.
What is ebook quality assurance?
It is a systematic test of an ebook's structure, display and metadata. Revision rounds are included, so the first delivery does not have to be perfect for the ebook quality check.
How much does an ebook quality check cost?
For your ebook quality check, the calculator on this page shows a fixed price for each package. For ebook quality check, we check the result against the platform's own rules before you see it.
Do you find ebook layout errors?
Yes. We check images, tables, lists and special elements. For a ebook quality check, we keep a record of what we changed so that you can review the work.
Do you check EPUB files?
Yes. We validate and test them. For your ebook quality check, the calculator on this page shows the fixed price for each package before you commit.
What is an ebook device preview check?
A test on several real devices and apps. For your ebook quality check, if you are unsure, send the file and we will tell you what the job involves.
Will you fix the issues?
Yes, on request. Revision rounds are included, so the first delivery does not have to be perfect for the ebook quality check.
Do you test dark mode?
Yes. For ebook quality check, we check the result against the platform's own rules before you see it.
How long does it take?
Most checks take about four days. For a ebook quality check, we keep a record of what we changed so that you can review the work.
What is an ebook quality check service?
It is testing your EPUB on real devices and validators and reporting every fault. For your ebook quality check, the calculator on this page shows the fixed price for each package before you commit.
Can you test my ebook before I publish?
Yes. For your ebook quality check, if you are unsure, send the file and we will tell you what the job involves.
Is this the same as proofreading in this ebook quality check order?
No. We check formatting and function, not the writing; for an editorial check, use a proofreader. Revision rounds are included, so the first delivery does not have to be perfect for the ebook quality check.
How much does ebook quality check cost?
The ebook quality check cost starts at $179 for a review and rises to $699 for a complete launch package. Ebook quality check services and ebook quality check cost depend on the platform and the amount of work, and the calculator shows the total.
How long does ebook quality check take to finish?
Most ebook quality check jobs are delivered in about 3 working days. Priority options shorten the schedule, and the calculator shows an estimate in this ebook quality check order.
Why can't I just check it myself?
You can, and you should, but you will check it on your device, at your font size, in your mode. The problems that reach readers are almost always the ones that only appear at a setting you do not use — a large font, an e-ink screen, dark mode. The value of the check is opening the file the way readers you have never met will.
How is the price worked out?
By the interior page count of your eBook, because a longer book has more chapters, links and pages to open and confirm on every device. Which formats you test, the report depth, the interior complexity and the number of images each adjust the figure, shown live in the calculator.
Can you check an image-heavy book?
Yes, and it is one of the most valuable cases. Image scaling and dark-mode behaviour are the things most likely to fail in guides, cookbooks and illustrated titles, so we check every image on small and large screens and confirm captions stay with their figures. The calculator has an image-load step for this.
Is my manuscript kept confidential?
Yes. Your file is not shared, not used as a sample, and not shown anywhere without your written permission. Every example on this page is our own demonstration work or an anonymised case published with the author's consent.
How do I get started?
Send the finished file, choose your options in the calculator, and you will see the exact price and delivery window before you commit. If your book is unusual — fixed layout, a large box set, heavy accessibility needs — request a custom quote and tell us what makes it different.
Ready to start your ebook quality check?
An ebook that has been tested on every reader reads well wherever it is opened. See your price in a minute, or send the file and we will confirm the scope with your ebook quality check.
- Fixed price shown before you pay
- Revision rounds included
- One named specialist, brief to upload
