Bindrik

Bindrik is a macOS application that converts artwork into KDP-ready book interiors and covers, automatically calculating bleed, gutter, spine width, page count and barcode zone. It targets self-publishers using Amazon's KDP platform who want to avoid rejections caused by geometry errors rather than artwork issues. The app previews trim, bleed and safe-area guides on every page before export, and works entirely offline, with no uploads or cloud accounts required. It is sold as a one-time purchase rather than a subscription, including one year of updates, and has been tested against a real book already accepted by Amazon to verify its calculations. It runs on macOS 12 or later, on both Intel and Apple silicon Macs.