A book cover sounds like one picture, but a print-ready cover is three: a front, a spine, and a back, laid out as a single wrap. Get the spine a few millimetres wrong, or forget the bleed the printer trims off, and the file comes back rejected. That math is where most authors get stuck.
Kvidha's cover designer handles it for you. You design the cover you want, and it keeps the dimensions correct underneath.
The spine sizes itself
Spine width depends on your page count and paper, and it changes the whole layout: the total wrap width, where the front and back meet, and where every element sits. Kvidha calculates it from your book and moves everything with it, so the spine always matches the block of pages it has to hold.
Type that stays sharp
You get more than twenty fonts, from a handful of system faces that are always available to display and script faces loaded on demand. Titles wrap across multiple lines and stay inside their margins, spine text rotates to read up the spine, and the front, spine, and back can each carry their own background.
A barcode that scans
Enter an ISBN-13 and Kvidha renders a real EAN-13 barcode onto the back cover, the same code a retailer scans at the till. If the number is not a valid ISBN, you get a clear placeholder instead of a broken barcode printed on ten thousand copies.
Export what the printer asked for
Every change is undoable, and your design is saved with your project. When the cover is ready, export it as a high-resolution PNG, an SVG, or a PDF, with the bleed and dimensions a printer or a platform like KDP or IngramSpark expects.
You can open the cover designer on any book project. The cover designer section of the docs walks through it.