AI Book Cover Generator

Start by telling Glif your title, author name, genre and blurb. For print, add the trim size, page count and paper type. Glif suggests a few concepts, you pick one and ask for changes in plain English, and it sizes the finished file for your platform.

For ebooks, 1,600 × 2,560 px as an RGB JPEG. Print covers are your trim size plus spine and 0.125" bleed at 300 DPI, and audiobook covers are square, at least 2,400 × 2,400 px. Glif works these out for you from your format and page count.

It can. Give it your trim size, page count and paper type and you get the full wrap at the exact print size. Your blurb and author bio go on the back with space for the barcode, and the title and author go on the spine once the book is thick enough.

Readers should know the genre at a glance, and the title should still be readable as a tiny Amazon thumbnail. One strong image usually beats several small ones. Ask Glif to show you your cover at thumbnail size before you publish.

Glif adds your title, author name, spine text and blurb as typeset text on top of the artwork, so they come out exactly as you type them and stay sharp at small sizes. Proofread before you publish all the same.

Artwork is made at 300 DPI print size (1,800 × 2,700 px for a 6 × 9" front cover), and text is added at the same resolution. KDP print and IngramSpark want a PDF, and IngramSpark wants CMYK, so convert the file in your PDF tool if your printer asks.

KDP allows them, but you have to say the book contains AI-generated images when you publish, even if you edited the image a lot afterwards. Check KDP’s content guidelines for the current rules.

Buying credits, through a subscription or a credit pack, unlocks commercial usage rights for what you make on Glif, subject to the underlying model licenses. Free credits are for non-commercial use, so buy credits before you make a cover you’ll sell. Attribution follows each model provider’s guidelines. See Glif’s terms for details.

Upload from your device or your Glif library, or pull in any saved asset with @. Glif can turn a rough sketch into a finished illustration, keep a character the same across a series, or restyle an old cover. For small fixes to an existing image, try the AI image editor.

Once you like a cover, ask the agent to "Create a personal skill from this workflow so I can make matching covers for the rest of my series." The skill saves the prompt, fonts, layout and model choices, and for book 2 you run it with the new title and blurb. Your characters stay in your Library, so you can reference them with @ and keep consistent AI characters across the series.

The agent picks a model for each step, and you can always ask for a specific one. Image models include GPT Image 2.5, Nano Banana Pro, Seedream 5, Flux 2 and Krea 2. Cheaper models are fine for early concepts, with a premium model for the final cover. See all models.

You can try Glif for free. Free credits are for non-commercial use, so buy credits or subscribe before you make a cover you plan to sell. See pricing.