KDP A+ Content sizes: every module, every rule

A+ Content is the block of images, text and comparison tables that sits under From the Publisher on your book's Amazon page. Its sizes are harder to pin down than they should be. KDP's help pages give sizes for only some modules, two of its pages disagree on the file limit, and several minimums appear only in Amazon's developer documentation. Here is every Standard module KDP offers, with its smallest image, the size KDP suggests where it suggests one, and where each number comes from. We checked all of it against Amazon's pages on October 22, 2026.

The quick answer

• 17 modules, up to five on a page. KDP lets you choose from 17 modules and use up to five in one layout.
• Wide banners: the Image & Text Overlay modules take an image of at least 970 × 300 px, and KDP suggests saving it at 1940 × 600 px.
• Squares: Three Images & Text takes at least 300 × 300 px per image, and KDP suggests 600 × 600 px. For Single Left Image, KDP also suggests 600 × 600 px.
• Files: JPG or PNG, RGB, each file under 2 MB.
• Copy: no prices, no calls to buy, no time words like "new", no customer reviews, no links and no comparisons with competitors.
• Review: KDP says compliant content appears within eight business days, and you publish it separately in each Amazon store.

What A+ Content is, and where it shows

KDP describes A+ Content as images, text and comparison tables you add to your book's detail page, to give readers more information as they consider buying it. It appears under the From the Publisher section. KDP notes that the exact spot varies and that most readers need to scroll to reach it.

That placement tells you what A+ is for. Your cover, title and book description do the first job on the page. A+ is the second look, for a reader who is already curious: the world of the book, its characters, the author, or the rest of the series.

KDP's self-publishing page lists A+ Content among its free marketing tools. You make it in your KDP account, separately from your book description.

Who can use it, and where to start

KDP offers A+ Content for published books. You can add it once a book is live or on pre-order, not before. One A+ project can be applied to several ASINs, so your eBook and paperback can share the same content, but you can only add ASINs from your own KDP account.

1. In KDP, go to the Marketing page and scroll to the A+ Content section.
2. Choose a marketplace, then click Manage A+ Content. This opens the A+ Content Manager.
3. Click Start creating A+ content. Give the content a name and choose the language it is written in.
4. Click Add module for each module you want, up to five. Upload images, type or paste text, and reorder or remove modules with the icons on each one.
5. Click Next: Apply ASINs and add each format of the book.
6. Click Next: Review and Submit, preview the layout on desktop and mobile, then click Submit for approval.

KDP's manager also has a generative AI option of its own. Modules that show an AI Ready badge can fill in text and images from your book's ASIN, with prompts if you add them. KDP says the feature is English only and available only in the United States, that it may limit how often you use it in a day, and that you are responsible for checking what it makes before you publish.

Every Standard A+ module and its image size

Two sources give A+ sizes. KDP's help pages give numbers for some modules. Amazon's A+ Content API documentation, written for software that builds A+ pages for Amazon sellers and vendors, lists a minimum image size for every Standard module that has an image. In the table, KDP means a KDP help page gives the number, and API means only Amazon's API documentation does. Module names drop the word "Standard" that KDP puts in front of most of them. KDP's help pages name 13 of the 17. The other four (Four Image & Text, Four Image/Text Quadrant, Single Image & Highlights and Single Image & Specs Detail) take their names from the module types in the API documentation. Sizes are in pixels, width × height.

Where the numbers disagree

• Single Left Image. KDP's examples page says 600 × 180 is the smallest image it accepts. Amazon's API lists 300 × 300 for the same module. Neither passes the other's check, so a safe floor is 600 × 300, and the 600 × 600 KDP suggests clears both.
• Single Right Image. KDP gives no size. In Amazon's API, Single Left and Single Right are one module with the picture on either side, so the same 600 × 600 file suits both.
• Four Image & Text. The API lists 220 × 200 and, unlike every other module, gives no unit. Nothing on KDP's pages confirms it, so go well above it.
• The overlays. KDP's examples page gives one set of numbers for "Image & Text Overlay". In the API it is one module with a dark or light overlay box, so the numbers apply to both.

A minimum is only the floor. For the overlays and Three Images & Text, KDP's suggested size is exactly twice the minimum: 1940 × 600 for a 970 × 300 banner, 600 × 600 for a 300 × 300 square. Doubling the minimum is a sensible target for the other modules too, as long as each file stays under 2 MB. KDP says it won't resize images, so make each file the right size before you upload it.

Text limits for each module

KDP publishes two text limits: 6,000 characters for Product Description Text and 16 rows for Technical Specifications. Every other limit below comes from Amazon's API documentation for the same module. KDP's own pages don't list them, so treat them as a guide, and go by KDP's A+ Content Manager if the two ever differ.

Two KDP notes help with formatting. Product Description Text has no heading style, so KDP suggests bolding or underlining the first line to make one. In the overlay box you can use bullets, bold, italics, underline or a numbered list.

File rules

KDP's A+ guidelines set the same file rules for every module:

• JPG or PNG, in RGB. CMYK isn't supported. If you reuse art from your print cover, check that the file you upload is in RGB.
• Under 2 MB for each file.
• No animation. Animated images, such as GIFs, are prohibited.
• Sharp and clean. No blurry or low-quality images, no watermarks, and no small text that can't be read on a phone.
• Alt text that describes the image. KDP used to call this field image keywords, but it is not a place for search terms. Alt text that doesn't describe the image, or wouldn't help someone using a screen reader, can get the content rejected.
• Unique to A+. KDP asks you not to reuse images already in the image gallery on your book's page.
• One logo. Use only one brand logo, such as an imprint logo, and only icons that help readers find their way through the text.
• Your rights. You need the rights to every image and every line of text you use.

2 MB or 3 MB?

KDP's guidelines say individual files must stay under 2 MB. KDP's examples page lists a 3 MB maximum for several modules, including the Comparison Chart, Single Left Image and Three Images & Text. A file under 2 MB meets both, so use 2 MB as your limit.

DPI, and why pixels matter more

KDP's pages give three resolution figures. The guidelines say at least 72 dpi. The examples page suggests saving at 300 DPI. The Create A+ Content page says to save at a minimum of 300 DPI and counts anything under 200 DPI as low resolution.

On a web page, what a reader sees is the pixel size. KDP says it won't resize your images, and that raising the DPI number on a file doesn't add any detail. So build each image at or above the pixel size in the table, and save it at 300 DPI so it satisfies every page.

What A+ copy cannot say

KDP's A+ guidelines list the most common reasons content is rejected, and KDP warns that breaking them can lead to a rejection, removal of the ASIN, or both. Leave out:

• Prices and promotions. No prices, discounts or shipping details, and no promotional words such as "affordable", "cheap", "bonus" or "free".
• Calls to buy. No "buy now", "add to cart", "get yours now" or "shop with us".
• Time-sensitive words. No "now", "new", "latest", "yet", "on sale now" or "the best yet", and no holidays. The guidelines name references to Kindle Unlimited here too, a program KDP's help pages now also call Kindle+.
• Customer reviews. No reviews, and no quotes from customers or other private individuals. You can use up to four quotes or endorsements, only from well-known publications or public figures, each with its source, plus the title when it is a publication. For editorial reviews, KDP points you to Author Central.
• Old or vague awards. Name the organization and the date of any award, and leave out awards more than two years old.
• Boasts and guarantees. No "#1 rated", "top-rated" or "100% satisfaction guaranteed", and no guarantees or off-Amazon return or refund policies. Claims such as "recommended by" or "proven" need a note naming who backs them, and the year.
• Competitors. No comparisons with other products, whether you name them or call them "others". A Comparison Chart can only include books from your own KDP account.
• Links and contact details. No web links, no wording that sends readers to other pages on or off Amazon, no QR codes, and no phone number, address or email.
• Amazon's look. Nothing that imitates Amazon logos or detail page headings.

The house style KDP asks for

The guidelines also set a style, and errors in it can get content rejected. Spell out numbers under 10. Use consistent punctuation and the serial comma. Capitalize each major word in a header. Avoid strings of all caps, and keep bold and italics for headings or a few chosen words. Take trademark and copyright symbols out of the text copy. Write in the language you chose for the content, and cut anything repeated or unnecessary.

Review time, marketplaces and changes

KDP says content that follows its guidelines appears on your detail page within eight business days, and that review can take longer during busy periods. If something needs to change, KDP emails you with instructions.

A+ Content you publish appears only in that Amazon store. From kdp.amazon.com you can publish it to Amazon.com, .ca, .co.uk, .de, .fr, .es, .it, .nl, .com.au, .com.br, .com.mx and .in. For Amazon.co.jp, you create A+ Content on kdp.amazon.co.jp, and it can only be published there. Readers see A+ Content in their preferred language: in KDP's example, Spanish A+ on Amazon.com shows only to shoppers who have Spanish set as their language there.

Once your content is published, KDP copies a draft into the other stores that support its language, where your book is live. To publish one, choose that store in the A+ Content section of the Marketing page, open the A+ Content Manager, check Show auto-created content, and submit it.

To change live content, edit it and submit it again. The same eight business days apply. Suspend takes the content off your page and keeps it in the manager for later. Delete removes it for good, and KDP says it can't be recovered.

Design for a phone first

A+ Content has to read on a phone as well as on a desktop. KDP turns away small text that can't be read on mobile devices, and its examples page gives two specific warnings: avoid adding text to the images in Three Images & Text, and put an overlay module's words in its overlay box, not in the background picture. When words in an image are necessary, KDP says they should be large and stand out from the colors behind them.

• Let the text fields carry the words. Most modules have a headline and body beside or over the image. Use them, and keep each picture for one clear subject.
• Expect banners to shrink. A wide banner has to scale down to fit a phone screen, and fine detail and lettering shrink with it.
• Put your strongest module first. KDP says most readers scroll to reach A+ Content, so lead with the module that matters most.
• Preview before you submit. The A+ Content Manager shows your layout on desktop and mobile. Check both.

Three starting layouts

KDP's examples page groups its ideas into series, author background, cover art and book sample. Here are three layouts built from those ideas, each within the five-module limit. Adjust them to your book.

A novel

1. Image & Dark Text Overlay, 1940 × 600: a wide picture of the book's world, with one line of mood in the overlay box, or no box at all.
2. Three Images & Text, 600 × 600 each: three things the reader will meet, such as a character, a place and a question. Short headlines under each, and no words in the pictures.
3. Product Description Text: a short passage from early in the book. KDP suggests a book sample as one use for A+, and a few paragraphs are plenty.
4. Single Left Image, 600 × 600: your author photo, with a short bio beside it.

A nonfiction book

1. Image Header with Text, at least 970 × 600: the book's promise in one headline, with a subheadline that says who it is for.
2. Four Image & Text: four tools or ideas the book teaches, each with a short headline and a sentence or two.
3. Technical Specifications: a plain table of what's inside, such as chapters, worksheets and who the book suits. It takes up to 16 rows.
4. Single Image & Sidebar: KDP suggests this module for author background, such as a photo with a short bio or a Q&A.

Watch the claims rules in nonfiction copy. Words like "proven" or "recommended by" need a note naming who backs the claim, and the year.

A series

1. Image & Light Text Overlay, 1940 × 600: the series world as a banner, with the series name in the overlay box.
2. Comparison Chart: up to five of your books side by side, each with its cover (at least 150 × 300) and rows like reading order, main character and setting. If a book is live, KDP says you can save its cover image from its detail page to use here, and you can add more than one chart to a page for a longer series.
3. Technical Specifications: KDP suggests this module for a list of books with a short description of each. Keep the row labels short, since the API caps a spec name at 30 characters.
4. Single Left Image, 600 × 600: you, and how the series began.

The chart can only hold books from your own KDP account, and none of its rows can mention price.

Making A+ images in Inkbound

In Inkbound, A+ Content has its own tab in Publish. You choose one of seven KDP modules: Image Header with Text, Image & Dark Text Overlay, Image & Light Text Overlay, Single Left Image, Single Right Image, Three Images & Text, or Four Image & Text.

• Your key points, one image each. List what you want readers to know, or leave the box empty and Inkbound chooses from your manuscript.
• Copy, then images. Inkbound writes a headline, body copy for Amazon's text field and alt text for each image, then paints the images one by one, cropped to the module's shape.
• Counters for each field. The headline and body show their counts against the module's limits from the text table above, and alt text against 100 characters. Inkbound flags anything over before you paste it into KDP.
• Words on the image, or clean art. On the wide modules (the header and the two overlays) you choose a headline and bullets designed onto the image, or clean art for Amazon's own text fields. For the overlays, clean art follows KDP's advice to keep words in the overlay box. The smaller modules always get clean art, with Amazon's text beside or under them.
• The cost first. It uses AI credits, and the Generate button shows the estimated credits before you start. Every new account includes 50 AI credits, and packs start at $9.99.
• Change what you like. Every line is yours to edit. Repaint one image. When the words are on the image, you can also keep the art and update just the words.

Each image downloads as a JPG at its module's size, saved at 300 DPI and kept under 2 MB. Three of the sizes are the ones KDP suggests. For the other two, Inkbound saves at twice the smallest width Amazon lists.

Inkbound doesn't upload anything to KDP. You add the modules in KDP's A+ Content Manager, upload the images, paste the text and alt text, apply your ASINs and submit. Comparison charts, technical specifications, sidebars and the other modules you build in KDP's manager directly. Before you paste, read the copy against the rules above. It's your listing. Downloading the finished images unlocks with your first $14.99 month or Lifetime, like the other finished files.

The rest of the listing has its own guides: how to write a book blurb, KDP keywords and KDP categories. Step 6 of how to self-publish a book on Amazon KDP walks through every field in order, and A+ comes once the book is live.