Cover Image
Add Cover to EPUB
Upload an EPUB and a cover image to add or replace the book's cover. The tool updates the EPUB manifest, adds the EPUB 2 cover metadata reference, and rebuilds the archive. Supports JPG, PNG, and WebP cover images. Preview the cover before downloading.
Input formats
Output formats
Common uses
- Add a cover image to an EPUB created from plain text or Markdown
- Replace a low-resolution cover with a higher-quality version
- Add a professional cover to a self-published manuscript
- Fix a missing cover before Kindle or Apple Books upload
Limitations
- DRM-protected EPUBs cannot be modified.
- Cover page HTML is not automatically created — only the cover image asset is added. Some reading apps generate a cover page from the cover image automatically; others require a cover HTML page.
- Recommended cover size: 1600×2560 px (2:3 portrait ratio).
Your e-book files, handled privately
This tool runs entirely in your browser. Your files are never uploaded to a server. This tool does not remove DRM or bypass copyright protection. Only upload files you own or have permission to process.
Frequently asked questions
Amazon KDP recommends 1600×2560 px (portrait, 1:1.6 ratio). Apple Books recommends at least 1400×1873 px. A 2000×3000 px JPG at 300 DPI works well across all platforms.
JPG, PNG, and WebP are supported. JPG is the most widely supported format across reading apps and publishing platforms.
Yes. If the EPUB already has a cover image, it will be replaced by the new one you upload.