How to Publish a Comic Book on Amazon KDP

What trim size should a comic book be on KDP?

Pick from KDP’s own list, because a size it doesn’t offer can’t be printed there. The traditional US comic issue (about 6.625 × 10.25 in) isn’t on that list; KDP’s nearest sizes are 6.69 × 9.61 and 7 × 10 in. KDP calls 6 × 9 in its most common US paperback trim, and it is close to the digest size manga readers know. The full list is on KDP’s Set Trim Size, Bleed, and Margins page.

Size class matters for cost: KDP counts a trim wider than 6.12" or taller than 9" as large, and large trims cost more per book to print. Choose the trim before you lay out a single page. Panels drawn for a tall 7 × 10 page don’t fit a 6 × 9 page without being redrawn or cropped, and the cover is built for one trim only.

Does a comic need bleed, and what margins does KDP require?

Comics often run a panel or a splash right off the page edge. If anything on a page touches the edge, export with bleed: each page is the trim width plus 0.125" and the trim height plus 0.25", and you choose Bleed (PDF only) on KDP. KDP notes that bleed works only with fixed-format files such as print-ready PDFs, which is what a comic interior is anyway.

• Outside margins: at least 0.25" without bleed and 0.375" with bleed, measured on the page you export.
• Inside (gutter) margin: at least 0.375" for books of 24 to 150 pages, which covers almost every comic.
• Panel borders: a border that stops a hair short of the trim reads as a mistake once the page is cut. Either keep it inside the margin or run the panel into the bleed.

The KDP margin & bleed calculator gives the page size and live area for your own trim and page count, and KDP trim size, bleed and margins walks through the rules in more depth.

Where should lettering sit on a printed comic page?

Balloons, captions and sound effects are the words a reader must not lose, so they belong inside the margins, never in the bleed or across the binding gutter. KDP’s paperback submission guidelines set the interior minimum at 7 pt type and ask for images of at least 300 DPI. Comic lettering is small by tradition, so check the smallest balloon on a printed proof, not only on screen.

In ColorCraft (our product), comic lettering is real text over the art rather than words baked into the picture, placed inside the print safe area. When words are too long for a panel they are set smaller, but never below 7 pt. The rest of the lettering craft is in comic page layouts explained.

Which ink and paper should a comic use, and what does it cost?

KDP’s print options are black ink on white or cream paper, standard color and premium color, both on white paper. KDP says to choose a color option if any images are meant to print in color. Standard color needs at least 72 pages; black ink and premium color start at 24. A black-and-white comic (in ColorCraft, the “Manga, black & white”, “Neo-noir”, and “1930s newspaper noir” styles) can use black ink and the cheapest printing.

KDP’s printing cost formula is a fixed cost plus the page count times a per-page cost, so a color comic pays the color rate on every page, including the credits and any blank ones. These are Amazon.com costs per copy:

Printing cost comes off your royalty on every sale, so price the book with it in view: the KDP printing cost calculator covers other trims and marketplaces, and how KDP royalties are calculated shows the rest of the formula.

How do you make the cover wrap and spine for a comic?

KDP wants the cover as one PDF with the back cover, spine and front cover side by side, plus 0.125" of bleed on the outside edges. The spine width is the page count times the paper’s thickness per page (0.002347" for premium color), so a 32-page 6 × 9 comic on premium color has a 0.0751" spine and a 12.3251 × 9.25" cover. Finish the interior first; every page you add widens the spine.

• Spine text: KDP allows it only from 79 pages, with 0.0625" clear on each side, so most comics have a plain spine.
• Cover text: keep titles and credits at least 0.125" inside the trim lines.
• File size: KDP won’t convert a cover over 650 MB and asks for 40 MB or less.

KDP’s cover calculator draws a template for your trim, paper and page count. How to make a KDP paperback cover and spine covers the barcode area and the whole build.

Do you have to disclose an AI-generated comic on KDP?

Yes, if any of it is AI-generated. KDP’s content guidelines define AI-generated content as text, images or translations created by an AI tool, and ask you to say so when you publish a new book or republish an edited one. Content you made yourself and only edited or checked with AI is AI-assisted, and KDP doesn’t ask about it.

A comic has two parts to answer for. If AI drew the panels, the images are AI-generated. If AI also wrote the story and dialogue, the text is too; if you wrote every word yourself and only the art is AI, say so. Either way you remain responsible for the book meeting KDP’s guidelines. The upload screens are covered in can you sell AI books on KDP and the KDP upload guide.

How long does KDP take to review a comic book?

KDP’s timelines page gives up to 72 hours for a paperback review, 3 business days for the book to be live on Amazon, and up to 72 hours for the detail page on Amazon.com (up to 5 days elsewhere). An account publishing its first book can take up to 6 days. Leave room for that in any launch date you announce.

How does a ColorCraft comic fit KDP’s rules?

ColorCraft’s AI comic book generator creates comics at 6 × 9, 7 × 10, and 8.5 × 11 inches, from 8 to 48 pages; choose 24 or more for a KDP paperback. Each drawn page uses 2 pages of your balance. Panels sit inside KDP’s margins, with the binding gutter sized for your page count, or run into the bleed on purpose. The interior exports in KDP’s bleed format, so choose Bleed (PDF only), and the cover wrap is sized to your trim and page count. Check the proof yourself: KDP decides what it accepts.

Steps: publishing a comic paperback on KDP

1. 1

   Pick the trim before you draw

   Choose a KDP trim size such as 6 x 9 or 7 x 10 in and lay out every page for it, because panels, margins and the cover all depend on it.

2. 2

   Reach the page minimum

   Plan at least 24 pages, or 72 if you will print on standard color ink, and count every page in the PDF.

3. 3

   Set up bleed and margins

   Size each page to the trim plus 0.125 in wide and 0.25 in tall if art reaches the edge, and keep balloons and captions inside the margins.

4. 4

   Choose the ink and paper

   Pick black ink for a black-and-white comic, or premium or standard color for a color one, then check the printing cost at your page count.

5. 5

   Make the cover wrap

   Build one PDF with the back cover, spine and front cover, sized with KDP’s cover calculator for your trim, paper and final page count.

6. 6

   Upload, disclose and review

   Upload both files, answer the AI-generated content questions, check every page in the previewer, and allow up to 72 hours for review.

Frequently asked questions