Howto question about gradual transparency
I am trying to include a picture into an aquatic background. The picture is cut out and has a transparent background, the aquatic background is continuous (it fills up the whole picture rectangle). Both are in .png format but I will change this if you advise me to change it.
I would like to make the bottom part of the picture gradually fade out from 0% transparency to 100% transparency, so that when I paste it onto the background, the bottom part of the picture seems to be in the water.
I am used to kolourpaint and libreoffice draw. I tried to do it in gimp but I couldn't find how to do it.
Please tell me how to do this.
The result of the "make" command:
- Sitting bored in front of a computer
- Watching abstruse output scrolling upwards too fast to be read
- And waiting for something to go wrong