I do not feel obliged to believe that the same God who has endowed us with sense, reason, and intellect has intended us to forgo their use. Galileo Galilei One of the basics when it comes to presentations (and digital editing in general) is understanding layers and transparency. In short, when you add images or objects to a presentation or file, the images are put over each other, with the latest one being above the previous one. Kinds like a scrapbook where you add material. But it does not have to be this way. You can easily change the position of an image on the “stack” by moving it further to the back (below the previously added images) or putting an image to the top of the stack. If a piece of software offers layers, you can group images (or elements) into layers, meaning you can change which images are on top within a layer, and move these layers as well (affecting all images on that layer). Unfortunately, Keynote does not support layers, so you have to deal with all elements at the same time (which are on top of others). But at least, Keynote supports transparency, which allows for [...]
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