In GIMP, there is no strict limit on the number of layers you can have in a single project, but the practical limit is determined by your computer's hardware and memory capacity. Each layer consumes system resources, so performance may degrade with a very high number of layers. Generally, most users find that they can comfortably work with dozens to hundreds of layers, depending on the complexity of the images and the capabilities of their system.
Press control + L to open the Layers window.
Complete the following steps:Launch the GIMP programFile> Open> and select the picture you would like to editSelect the Open button
A great software is Gimp. Another is Paint.net. They allow you to edit and create photos with layers, a number of brushes, and elaborate colors with shading and highlights.
Click on windows / dockable dialogs / layers channels paths
In the "Layers, Channels, etc" window, right click on a layer and click delete.
There's a specific command for that under 'layers'. You can also do it in the layers "toolbox" (wrong term- but the stuff on the right side of the screen)
Press Control + L to re-open the Layers window
IF your picture has multiple layers (it may not - jpeg's don't when brought in) it will allow you to determine which layer is being modified by the editor, and to rearrange which layers are on top.
Personally I believe that Paint is good for starting drawings while gimp is good for colouring them in and editing photos.
In GIMP, to draw on multiple layers simultaneously, you can use the "Paint on All Layers" option. First, select the layer you want to draw on, then go to the "Tool Options" for your brush or pencil tool and check the "Paint on All Layers" box. This allows you to apply your strokes to all visible layers at once. Remember to ensure that the layers you want to affect are visible and not locked.
GIMP can edit images to lighten or darken them. GIMP can create logos. GIMP can do many things, for more information and tutorials visit: thegimpking.blogspot.com
To adjust the white balance in GIMP for better color accuracy in photos, go to the "Colors" menu, select "Color Balance" or "Levels," and adjust the sliders for red, green, and blue channels until the colors look more natural.