ragedunicorn/magick repository overview

⁠ImageMagick Alpine Docker Image

A lightweight ImageMagick 7 installation on Alpine Linux with the delegate libraries for common image formats.

⁠Quick Start

# Pull latest version
docker pull ragedunicorn/magick:latest

# Or pull specific version
docker pull ragedunicorn/magick:7.1.2.24-alpine3.24.1-1

# Convert an image
docker run -v $(pwd):/tmp/workdir ragedunicorn/magick:latest input.png output.jpg

⁠Features

• 🚀 Small footprint: Alpine Linux base with only the needed format delegates
• 📦 ImageMagick 7: The modern magick CLI (legacy convert/identify entry points included)
• 🖼️ Common format support: JPEG, PNG, GIF, WebP, HEIC/AVIF (read), SVG, TIFF
• 🔤 Text rendering: DejaVu fonts included, so -annotate and label: work out of the box
• 🔒 Non-root: Runs as the unprivileged magick user by default
• 🏗️ Multi-platform: Supports linux/amd64 and linux/arm64

⁠Supported Formats

Built-in: PNG, GIF, BMP Delegates: JPEG (libjpeg-turbo), WebP (libwebp), HEIC/HEIF and AVIF (libheif, read), SVG (librsvg), TIFF (libtiff) Not included: PDF/PostScript (ghostscript), JPEG XL, RAW

⁠Usage Examples

⁠Convert image format

docker run -v $(pwd):/tmp/workdir ragedunicorn/magick:latest \
  input.png output.jpg

⁠Resize an image

docker run -v $(pwd):/tmp/workdir ragedunicorn/magick:latest \
  input.jpg -resize 50% output.jpg

⁠Create a thumbnail

docker run -v $(pwd):/tmp/workdir ragedunicorn/magick:latest \
  input.jpg -thumbnail 150x150 thumbnail.jpg

⁠Convert iPhone photos (HEIC to JPEG)

docker run -v $(pwd):/tmp/workdir ragedunicorn/magick:latest \
  photo.heic photo.jpg

⁠Tags

This image uses semantic versioning that includes all component versions:

Format: {imagemagick_version}-alpine{alpine_version}-{build_number}

⁠Version Examples

• 7.1.2.24-alpine3.24.1-1 - Initial release with ImageMagick 7.1.2.24 and Alpine 3.24.1
• 7.1.2.24-alpine3.24.1-2 - Rebuild of same versions (bug fixes, security patches)
• 7.1.2.24-alpine3.24.2-1 - Alpine Linux patch update
• 7.1.2.25-alpine3.24.1-1 - ImageMagick version update

When updates are available through automated dependency management, new releases are created with appropriate version tags.

⁠Links

• GitHub: https://github.com/RagedUnicorn/docker-magick⁠
• Issues: https://github.com/RagedUnicorn/docker-magick/issues⁠
• Releases: https://github.com/RagedUnicorn/docker-magick/releases⁠

⁠License

MIT License - See GitHub repository⁠ for details.