SwiftLibgd is a Swift wrapper for libgd, providing server-side image manipulation where Core Graphics isn’t available. Built for Swift 6.2+.

It allows you to:

• Load and save PNG/JPEG images.
• Create, resize, and crop images.
• Draw lines, shapes (ellipses, rectangles), and images.
• Read and write individual pixels.
• Flood fill colors.
• Flip images horizontally or vertically.
• Apply basic effects: pixelate, blur, colorize, desaturate.

SwiftLibgd handles GD resources automatically, freeing memory when images are destroyed.

Installation

1. Install the GD library on your system:

• macOS: Install Homebrew, then run:

brew install gd

• Linux: Run as root:

apt-get install libgd-dev

2. Add SwiftLibgd to your Package.swift:

.package(url: "https://github.com/brillcp/swiftlibgd.git", from: "0.1.2")

3. Include SwiftLibgd in your target dependencies. SwiftLibgd has a single Swift dependency: Cgd, which wraps the underlying GD library.