How can I save lots of image into png format in Mac OS X?

Posted by user28167 on Super User See other posts from Super User or by user28167
Published on 2010-05-25T13:50:18Z Indexed on 2010/05/25 13:51 UTC
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mac

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image

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bulk

I have about thousands images, I want to open it in preview, and click "save as", use the same name, and save as png. All these images just do the similar thing, instead of click one by one, how can I do so? thz u.

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