KDP Cover Image Size Checker

Find out if your image is big enough to print as a KDP cover. Choose your image and trim size to see the print resolution and the pixel size you need. Your image stays on your device; nothing is uploaded.

What the result means

Print resolution is how many of your image's pixels land on each printed inch. KDP asks for 300 DPI on covers. The checker works out the size your image has to be printed at to fill the cover (including the 0.125" bleed on the outer edges) and divides your pixels by those inches.

300 DPI or more: sharp in print. 200 to 299: KDP may show a low-resolution warning and the print can look slightly soft, especially on fine detail and small text in the image. Under 200: likely to look blurry or pixelated on paper, even if it looks fine on screen.

If your image is too small

Go back to the source: export the original artwork at the pixel size shown above, or ask your designer or illustrator for a print-size file. Simply enlarging a small image in an editor adds pixels but not detail, so the DPI number goes up while the print stays soft. Images saved from a website or a social post are almost always too small.

If the shape doesn't match

A cover has a fixed shape. If your image is wider or taller than that shape, some of it is cropped off to fill the cover. The checker tells you roughly how much, so you can keep important parts away from those edges. See the cover size guide for bleed and safe zones, and the spine calculator for exact cover dimensions.