Amazon KDP and IngramSpark covers

Where to put the barcode on your book cover

By Marko Markovic, prepress specialist · Updated 10 October 2026 · 4 min read

The rules every platform agrees on

• Back cover, bottom. The US guidelines call the back cover "Cover 4" and put the barcode at its bottom. Lower right is the common choice, and it is where KDP puts its own barcode.
• On white. KDP asks for a solid white background, IngramSpark for a white box or background.
• Clear of the edges. KDP: at least 0.25 in (6.3 mm) from the spine and the trim. IngramSpark: inside the safety area of its template.
• Upright and square. KDP asks for the barcode right side up and square to the cover. No rotation, no perspective.
• Nothing on top, nothing in the quiet zones. No text over the bars, no frame tight around them.

Measure from the trim, not the bleed

Your cover file is larger than the printed book, because it includes bleed (KDP and IngramSpark both use 0.125 in on paperbacks). The 0.25 in clearance is measured from the trim line, where the book will be cut, not from the outer edge of the file. On a full-wrap cover, the spine is in the middle, so on the back cover the spine side is the right edge. In practice:

• Bottom of barcode area: at least 0.25 in above the bottom trim, so at least 0.375 in above the bottom edge of the file if your bleed is 0.125 in.
• Right side of barcode area: at least 0.25 in left of the spine fold.

Use the template your printer gives you; it shows trim, bleed and safe areas as guides.

Step by step in InDesign, Affinity Publisher or Illustrator

1. Make the barcode PDF with your ISBN. Choose the layout for your printer (KDP layout, IngramSpark layout) or plain ISBN or ISBN + price.
2. Open the cover template from your printer, or set guides for trim, bleed and spine.
3. Place the PDF. InDesign: File, Place. Affinity Publisher: File, Place. Illustrator: File, Place. Do not paste a screenshot.
4. Check the scale is 100%. In InDesign, select the frame and look at the scale fields in the Control panel. If the platform gave you an exact box size, the KDP and IngramSpark layouts already match it.
5. Move it into position in the lower right of the back cover, inside the safe area, with white behind it.
6. Export the cover with your printer's preset (often PDF/X-1a or PDF/X-4), without converting the black to a profile.
7. Check the exported PDF: the barcode should be on the black plate only, and still vector. How to check.

What about Canva and other web tools?

Most web design tools accept PDF or SVG uploads, but some convert them to images on upload. If your barcode becomes an image, it can still work at 300 PPI and 100% size, which is what KDP accepts for raster. Check the final exported cover PDF the same way: zoom in, look at the edges, check the separations.

Placement mistakes we see most often

• The barcode sits on a photo or a gradient instead of white.
• It was scaled down to make room for a blurb.
• It is rotated to fit along the spine.
• It is closer than 0.25 in to the trim, measured on the trim line.
• A thin frame was drawn tight around the bars, inside the quiet zone. (A thin frame around the outside of the white box is a different thing: it stays clear of the quiet zones, and in the KDP layout it overprints at half its line width to hide small registration misfits at the edge of the white area.)
• The back cover uses the paperback barcode on the hardcover jacket, with the wrong ISBN.