I have a problem in GIMP with the opacity of a layer. When I change the opacity of a layer(e.g opacity is 40) and go to another layer, the previous one's opacity goes automatically to 0. Does someone knows how can I fix this problem? Thanks!


If it is a color-indexed image (typically, loaded from GIF), then this could be expected, since GIF doesn't support partial opacity, so in color-indexed mode pixels are either fully opaque or fully transparent. Convert the image to RGB (Image>Mode>RGB) to avoid this, but if you export to GIF again you may not get what you expect.

  • Thanks for the suggestion but I have no gif images and my image is in RGB mode. I reinstalled GIMP but there is still no change. :/ – tenri Mar 18 '18 at 17:58
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    Can you change your question and describe what you are doing in reproducible steps? Preferably with a sample image to start from. – Michael Schumacher Mar 19 '18 at 9:44

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