: Edit multiple layers in Gimp Is it possible to apply things like brightness/contrast or hue saturation or even filters to more than one layer at a time in Gimp?

@Gail6891361

G'MIC addon will work for that

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@Smith574

Layer groups have a limited ability to affect multiple layers. The most useful of these is opacity. Operations such as brightness and contrast are currently layer-only operations in GIMP and will not work on layer groups.

One possible work around is to save settings as a preset when adjusting brightness, and other settings. This will allow you to re-produce the same settings on additional layers (although they must still be applied to each layer one at a time).

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@LarsenBagley460

If you install the GIMP Animation Plug-in (GAP), you will have available a "Filter All Layers" command added to the Filters menu. When you execute the command, you will be presented with a list of all filters available in the Procedural Data Base and be able to choose one of them to be applied to each of the layers in your image...

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