: Optimizing (Compressing) GIF images in Photoshop I am trying to optimize an animated GIF image in Photoshop. The current size is 2.2 MB. Following the guides I found online, they told me to

@Kaufman565

Generally speaking, use either dither or color table reduction, but not both.

I recommend you use the Lossy slider. You have it set at zero. You can crank it up. The higher you go, the more information Photoshop will throw away as it converts your image into a GIF, and the smaller the file size will get.

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@Murray976

Fewer colors + 100% dither + no Transparency Dither = greater size.

Adding a transparency dither or reducing the color dithering to less than 100% will most likely reduce the file size.

When you reduce the color table and have a high dither setting, you ask Photoshop to dither with fewer colors. This actually creates more color data to maintain from frame to frame, thus increasing the file size. The fact that your animation has 157 frames with 100% dithering it wouldn't surprise me if the file size quadrupled due to the dithering setting.

If you are truly interested in reducing the file size, you need to prune at least half those frames. This is especially true if image changes between the frames are present for all 157 frames. You simply can't squeeze a blue whale into a tuna can.

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