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PhotoShop and (IIRC) FireWorks both allow for batch processing of images following a recorded script. Are there other desktop image editing applications I could look at that also have that same capability? Open source or pay. MacOS or Windows (Or Ubuntu, for that matter).

I am primarily looking for an easy way to batch resize collections of images. Ideally, I could auto-crop as well (crop canvas to maximum image size).

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up vote 3 down vote accepted

When I have to just batch resize images I would use either Automator (OS X) or IrfanView (Windows)

If I'd like to use command line, I'd use sips, ImageMagick or NConvert.

Also GIMP has scripting powers and also can be used via command line.

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Automator! I've never used it. And feel rather silly for not have in the past. Looks like Pixelmator can be scripted with that. Will definitely play with that! – DA01 Feb 28 '11 at 14:55

In addition to @koiyu's response, Acorn by Flying Meat Software has robust yet simple-to-use scripting capabilities.

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Good one. Possibility that an app has scripting (or at least batching) capabilities steeply rise if you have to throw some money at it. – koiyu Feb 27 '11 at 20:21
Looks like it also uses Automator. Nice. Has anyone used both Acorn and Pixelmator? Any thoughts on a comparison? – DA01 Feb 28 '11 at 14:54

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