Posted 22 March 2009 - 06:50 AM
When referring to file sizes, which are always expressed in bytes, "k" is short for "kB" (kilobytes).
If you want to increase the pixel dimensions of a crop, use the "resample" function. This will give the least apparent quality loss. But any enlarging process will always look lower in quality, as the same amount of detail is being spread over a larger area. The higher resolution can never be reconstructed perfectly. It's better if possible to start from a higher resolution original, so the cropped area comes out the size you want, or closer so less enlargement is needed.
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