Image file sizes

Recently a couple of different but related topics have come up, in multiple contexts: server storage space and network bandwidth. Both of those issues are affected by the number of images we post, but also by the size of the images. (I’m referring here to the file size, not the number of pixels – and those two things may not be as closely related as it might appear.)

This post is an attempt to demonstrate some methods for shrinking image file size (and therefore using less space on the server, and less bandwidth on everyone’s browsers, without reducing the pixel size or the quality of the posted images.

All but one of the tools I use here are free. I’ll provide a list at the end. Some of them (especially in the first step) can easily be replaced with other tools, free or not, as you prefer.

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