: Reduce 30MB image to less than 50KB without significant loss I am creating figures for a scientific paper. The journal I am submitting to seems confident "all figures can easily be reduced to

@Sarah814

Use mozjpeg for quality coding.

What resolution do you need it in? I made the image come down to 170kB using mozjpeg's algorithm (40% quality). It's visibly OK.

Using PNG-8 (100% quality), I got the filesize down to ~600kB

Another alternative - use tinyjpg.com and it'll reduce the jpg down to ~300k but with a very little visual quality loss (you'll be hard pressed to see a difference unless you zoom in).

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@Nimeshi706

A ~620% file size reduction is asking a great deal.

It's possible, but I'm not sure what restrictions should be watched, file dimensions? color depth? etc.



^^50k gif file.

This is a reduction of the dimensions by 85%, set as a gif with only 32 colors in the color table.



As @Ryan points out, if the text and labels were vector in nature it may allow file reduction without dimension reduction. Another possible alternative is to forego gradients if possible in favor of solid colors.

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