CoverRescue

KDP Cover Checker

Compare your cover file with the exact paperback setup before uploading to KDP.

Private, local check

Expected cover setup

Set the target dimensions before choosing your cover file.

Finished front-cover width and height.

Use the page count shown after KDP processes the interior file.

Paper thickness determines the spine coefficient.

Drop your cover here

or choose one PDF, JPG, PNG, or WebP file

One file, up to 30 MB. The file never leaves this browser.

Local inspection

Check against this setup

Expected page size13.050 × 9.250 in
Expected raster size3915 × 2775
ProcessingBrowser only

Choose a file to compare its detected page size or pixel dimensions with the expected result above.

What the checker can catch

For PDFs, CoverRescue reads the physical first-page size and confirms that the file contains one page. For JPG, PNG, and WebP files, it checks aspect ratio, exact pixel dimensions, and whether enough pixels exist for a 300 DPI export.

What still needs a visual review

Automated dimensions cannot confirm embedded fonts, transparency flattening, barcode placement, safe text margins, color profile, or content policy. Review the downloaded KDP Print Previewer result before publishing.