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Previously a Senior Engineer at BSkyB—one of the UK’s largest media organisations—he now helps companies of all shapes and sizes with their JS architecture, front-end performance, and more. He is the developer of popular image optimisation tool ImageOptim-CLI, and Tweets about all things front-end at @fold_left.
Exporting images for the Web from one’s favorite graphics software is something many of us have done hundreds of times. Our eyes fixate on an image’s preview, carefully adjusting the quality and optimization settings until we’ve found that sweet spot, where the file size and quality are both the best they can possibly be.
After exporting the image — usually using a feature called “Save for the Web” — and having gone to all that care and effort, we would be forgiven for thinking that our image is in the best shape possible. That’s not always the case, of course.