Image (7 programs)

Lossy/lossless image compression tool

Commandline tools for manipulating, editing, and converting raster & vector images

Resize an image, blur, crop, despeckle, dither, draw on, flip, join, re-sample, and much more

Experimental lossless & lossy image optimizer (PNG, JPEG, WebP, APNG) designed to be used for web context

Open source text recognition (OCR) Engine to extract printed text from images.

Render HTML file to an image (part of WKHTMLTOPDF)

Complete cross-platform open source barcode generating solution