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compressing-epub-images

Compress and resize images inside EPUB files using ImageMagick.

1|Updated Jan 7, 2026
Search Tags:#ImageMagick#EPUB#image compression#file size reduction#EPUB optimization
One-click install
npx skills add https://github.com/sumik5/sumik-llm-plugin --skill compressing-epub-images
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: compressing-epub-images
Source: https://github.com/sumik5/sumik-llm-plugin/tree/main/plugins/studio/skills/compressing-epub-images
Command: npx skills add https://github.com/sumik5/sumik-llm-plugin --skill compressing-epub-images

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires ImageMagick, and includes scripts (resource) and assets (resource) components.

What problem does it solve?

This Skill compresses and resizes images within EPUB files to significantly reduce file size without sacrificing quality, making it ideal for optimizing scan-based EPUBs.

Core Features & Use Cases

  • Image Compression: Reduce EPUB file size by compressing and re-encoding JPEG images using ImageMagick.
  • Resizing: Resize images to reduce file size further.
  • Quality Adjustment: Provide users with a choice of compression levels to maintain desired quality.
  • Use Case: Perfect for those who need to reduce the file size of EPUBs, especially large scan-based EPUBs, before transferring them to devices like Kindles or for archiving.

Quick Start

Run the 'compressing-epub-images' skill to compress images in an EPUB file to reduce its size and optimize for storage or transfer.

Frequently Asked Questions about compressing-epub-images

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I reduce the file size of a scanned EPUB?▼

To reduce the file size of a scanned EPUB, you can compress and resize its internal JPEG images using ImageMagick. This process re-encodes images to significantly lower storage requirements without sacrificing quality.

Does EPUB image compression work well for text-heavy scan-based files?▼

EPUB image compression is highly effective for text-heavy scan-based files because it targets and optimizes the large scanned images within. Resizing and adjusting compression levels ensures the text remains readable.

What is the best way to optimize EPUB images for Kindle transfer?▼

The best way to optimize EPUB images for Kindle transfer is to compress and resize images using ImageMagick. This reduces the overall EPUB file size, making it faster to transfer and load on devices.

Do I need ImageMagick to compress images in an EPUB file?▼

Yes, you need ImageMagick installed to compress and resize images within EPUB files. This Skill relies on ImageMagick's capabilities to re-encode JPEGs and adjust quality levels for file size reduction.

Can I adjust the image quality when reducing EPUB file size?▼

You can choose from different compression levels to adjust image quality when reducing EPUB file size. This allows you to balance the desired visual clarity against the required storage space.

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