Cover & Spine Design Tool

Calculate spine and cover size from pages and stock, then design on the canvas. CMYK inputs are converted to RGB for on-screen preview and export.

1. Book specs

Hard cover = 15 mm bleed, Perfect = 3 mm bleed
Finished book block width (front)
Finished book block height
Values from The Book Printing Company stock table
Total pages (text + blanks)

2. Design on the canvas

1. Background Type: Area: JPG/PNG, max 10 MB.
Colour (overlay/solid): Opacity:
Background CMYK (optional):
2. Text & images
Text colour: Align: CMYK is converted to RGB for preview and PDF.
Text CMYK (optional):
Layer visibility:
Left = back cover, middle = spine, right = front cover. Dashed outer edge is the bleed. CMYK values are approximate and converted to RGB before export.