I have n images which are all of the same size. Each of the images is inserted on a new page and the images illustrate a process step by step. I wanted to give all of them the same fixed position on their respective pages, so that it looks like a tiny animation when a user opens the pdf in 'presentation mode', 'fit to page mode' or whatever and navigates through the pages via arrow keys.
Note: I noticed that a figure is centered automatically, if it is the only thing on the page but if the caption of the different images cover a different amount of lines, the position is not the same for all images any more. So, I can't do that.