I've been using the gradient tool to horizontally fade some images to transparent in Gimp v2.8.14.

I just select the layer that I want to fade (usually it's the only layer in the image), select the gradient tool with mode:normal, opacity:100, gradient:FG to Transparent, shape:linear, repeat:none and drag a line from one end of the image to another.

It's been working fine, and now suddenly it's stopped working. When I drag the line across the image now, it always fades to the foreground color instead of transparency. If I hide the layer from the layers panel, the image disappears and shows the checkered transparency panel underneath, so there's definitely no foreground layer hiding under it.

  • Have you tried going to to layers -> add alpha channel?
    – jcbermu
    Mar 1, 2016 at 11:28
  • I think you might get a better response on GraphicDesign.SE
    – Burgi
    Mar 1, 2016 at 13:31

2 Answers 2


It looks like I had to add a layer mask to the image that I want to fade (I wasn't doing that before though). Anyway, if you right-click the layer in the layers panel, select Add Layer Mask and choose White (full opacity) or whatever that option is called. Then use the gradient to fade the image.


Fairly old post but very helpful to me. I added the "Add Layer Mask" > "Transfer Layers Alpha Channel". This worked with fading to transparent to bg or fg color. Then I added an Alpha Channel to the entire image and was able to fade the layer to tranparent.

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