EPUB Cover Editor

Add, change, or replace an EPUB cover image locally in your browser while preserving the original ebook and unrelated package files.

EPUB / LOCAL

Choose an EPUB file

Drop a DRM-free EPUB here or choose one from your device. The file stays in this browser tab.

The book is processed locally and is not uploaded for these tools.

Edit EPUB

Use an EPUB Cover Editor to change or add a cover

This EPUB Cover Editor detects common EPUB 2 and EPUB 3 cover declarations, previews the existing artwork, and packages a replacement image into a new EPUB.

Find existing cover references

Check common EPUB 2 and EPUB 3 declarations before replacing the artwork.

Use JPG, PNG, or WebP

Preview the replacement image and retain its declared media type.

Keep the original book

The EPUB Cover Editor downloads a newly packaged EPUB instead of overwriting your file.

Core features

Features built around the task

Complete the real user task first, with explicit compatibility boundaries.

EPUB Cover Editor detection

The EPUB Cover Editor checks cover-image properties, EPUB 2 cover metadata, guide references, and common cover pages.

EPUB Cover Editor preview

Compare the current cover and replacement in the EPUB Cover Editor, including dimensions and aspect ratio.

Package-safe replacement

Update the cover resource and package references while preserving unrelated book files.

Workflow

Complete the task in three steps

The file is processed within the current browser tab.

Choose an EPUB for the cover editor

Open the book in the EPUB Cover Editor and inspect its current cover declarations.

Choose an image

Select a JPG, PNG, or WebP image and review how it fits.

Download the EPUB Cover Editor result

Replace the packaged cover and keep the original EPUB file untouched.

Support boundary

First-release support details

Understand the output and current limits before processing.

Image formats

JPG / PNG / WebP

The selected image type is declared in the manifest.

Fit mode

Contain by default

Cropping is never applied without an explicit choice.

Package metadata

EPUB 2 / 3 aware

Update the relevant cover declarations for the detected version.

FAQ

Questions about this tool

Direct answers about privacy, compatibility, and output.

Can an EPUB Cover Editor add a missing cover?

Yes. This EPUB Cover Editor can package an image and add the appropriate cover references.

Will the tool crop my cover?

Not by default. The preview uses a contain fit unless you explicitly choose a crop option.

What cover size should I use?

A portrait image with sufficient resolution is the safest choice, but exact store requirements should be checked before publishing.

Which image formats are accepted?

The editor accepts JPG, PNG, and WebP images and writes the matching media type into the EPUB manifest.

Does replacing the cover overwrite my original EPUB?

No. A newly packaged EPUB is downloaded, while the original file on your device remains unchanged.

Will every reading app show the new cover?

The editor updates common EPUB 2 and EPUB 3 cover declarations, but reading apps and stores can cache covers or apply their own import rules.