Sometimes, I'll have several layers on an image and I want to crop one of them. NOT resize it, crop it. Every technique I've tried simply crops EVERYTHING, not just the layer I'm working on. I have to delete the layer, crop the original image that it's from, then re-paste it into what I'm working on. I'd also like know how to rotate a layer without rotating everything else in the entire image.

  • Have you tried making a selection then click Layer > Crop to selection? – Billy Kerr Oct 15 '19 at 17:57
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    I'm not a GIMP user, but in most raster editing applications you don't "crop a layer" -- You select what you want removed from the layer and the delete it from the layer. "Cropping" only refers to the entire document, not individual layers. – Scott Oct 15 '19 at 19:03
  • @Scott Not the same thing. What you describe fills the layer with transparency but it keeps it size. The crop resizes it. – xenoid Oct 15 '19 at 22:07
  • I know. Layers don't typically have sizes which are independent of the document. All layers in a document have the document size. – Scott Oct 15 '19 at 23:12
  • @Scott, in GIMP you can crop a layer to have a size that is not dependent on the document size. So, in this regard GIMP is different from Photoshop and others. – Billy Kerr Oct 16 '19 at 12:10

Let us assume you had selected a layer as an active layer which can easily be done using the layers menu:

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This makes the ants yellow to indicate the active layer

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If you then want to crop just this active layer make sure you had ticked the "current layer only" box in the crop tool menu

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Now, when you apply the crop tool a new active layer will be created as cropped from the previous active layer:

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To crop a selection from a layer choose Layer > Crop to selection from the top menu.

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  • This can also be done by making an ordinary selection (e.g. with the rectangle select tool), then clicking Layer > Crop to Selection – Billy Kerr Oct 16 '19 at 12:58
  • @BillyKerr: cool - thanks for that! Even after years Gimp still surprises me with things that of course can be done. – Takkat Oct 16 '19 at 16:38
  • Thanks, I will try this! – Vivienne Mercier Oct 23 '19 at 18:03

I'd also like know how to rotate a layer without rotating everything else in the entire image.

Use the Rotate tool for intereactive editing:

enter image description here

Or use Layer>Transform>Arbitrary rotation if you know exactly what you want to do.

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