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Changing quality of the JPEG when saving an image, changes the file size. For eg. I have the following image. Dimension: 243px x 53 px Quality:100% File Size:9.7kb Background:
If I edit the image, keeping the dimensions and Quality same, the file size still falls to 6.1kb.
Problem: I am using Fotoresizer, which has a batch Quality change option, but due to the above problem, you cannot predict file size from quality alone. So when I batch change quality of a set of 200px x 300px images set at 20% quality, some files will turn out at 6kb, whereas others will turn out at 15kb, when the file size I want is 10kb.
Is there any program or programmable solution, which lets me save all files in a range of 10-11kb, without me manually changing the quality slider to change file size each time.
You may want to edit your title to make it clear you're talking about file size, not image size (which is what people will assume). – Cry Havok – 2010-10-20T12:03:03.667