ilibgo is a pure-Go library for reading, creating, manipulating, and saving images, with a focus on drawing primitives and text rendering. It’s a Go port of the original C Ilib, keeping API compatibility while adapting to idiomatic Go.

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Key Features

• Reads any format Go’s standard image package supports; writes PNG, JPEG, GIF, BMP, TIFF, and PPM
• Drawing primitives: points, lines, rectangles, arcs, circles, ellipses, polygons, Bezier and Catmull-Rom curves, and flood fill
• Anti-aliasing, alpha compositing, and color quantization
• Embedded X11 BDF bitmap fonts plus scalable, anti-aliased TrueType/OpenType text
• No required third-party dependencies beyond golang.org/x/image

Quick start: go get github.com/craigk5n/ilibgo. Licensed under the GNU LGPL v2.1 (bundled BDF fonts carry permissive Adobe/X.Org notices).