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create a thumbnail by command lineComputer/linux 2011. 9. 27. 23:45imagemagick can do almost everything .....
convert -thumbnail widthxheight a.png a.thumbnail.png
- convert -thumbnail 120 a.png a.thumb.png (width 120px)
- convert -thumbnail 120x120 a.png a.thumb.png (width/height 120px)
- convert -thumbnail x120 a.png a.thumb.png (height 120px)
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