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ryankolean
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cli-imagemagick

Automate image editing tasks from the command line using ImageMagick.

3|1|Updated Mar 27, 2026
Search Tags:#resize#convert#command-line#imagemagick#batch-processing#image-processing#watermark
One-click install
npx skills add https://github.com/ryankolean/summit-claude-skills --skill cli-imagemagick
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: cli-imagemagick
Source: https://github.com/ryankolean/summit-claude-skills/tree/main/skills/cli-imagemagick
Command: npx skills add https://github.com/ryankolean/summit-claude-skills --skill cli-imagemagick

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

ImageMagick provides a powerful, scriptable toolkit to perform complex image editing from the command line, eliminating the need for GUI tools for many routine tasks.

Core Features & Use Cases

  • Inspect Images (magick identify) to retrieve format, size, and metadata.
  • Basic Conversion, Resize, Crop, and Rotate to fit various output requirements.
  • Batch Processing with mogrify to apply edits across many files, generate thumbnails, watermarks, favicons, or export image formats for web and apps.
  • Example Use Case: prepare a photo gallery by resizing a folder of images to web-friendly sizes and applying a watermark.

Quick Start

Resize an image to 800x600 pixels using magick input.jpg -resize 800x600 output.jpg.

Frequently Asked Questions about cli-imagemagick

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

FAQPage Schema
How do I batch resize images from the command line?▼

Batch resize images from the command line by using ImageMagick's mogrify command to apply edits across many files in a folder simultaneously. This generates web-friendly sizes and thumbnails without opening a GUI.

Can I add a watermark to multiple images using ImageMagick?▼

Yes, you can add a watermark to multiple images using ImageMagick's mogrify command for batch processing. This applies a consistent watermark across an entire folder of images directly from the command line.

What is the difference between magick and convert in ImageMagick?▼

The difference between magick and convert is the ImageMagick version: v7 uses the magick command, while v6 uses convert. This Skill specifies command usage and option syntax compatibility notes across both versions.

How do I convert image formats for web and apps without a GUI?▼

Convert image formats for web and apps without a GUI by running ImageMagick commands like magick input.jpg output.png. You can automate format conversion across folders using the batch processing mogrify command.

How can I retrieve image metadata like format and size from the terminal?▼

Retrieve image metadata like format and size from the terminal by using the magick identify command. This inspects images to retrieve detailed file information, dimensions, and metadata without needing external tools.

Is command-line image processing suitable for generating favicons?▼

Yes, command-line image processing is suitable for generating favicons. Using ImageMagick's batch processing capabilities, you can resize and export images into favicon formats automatically across entire directories.

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