Hello, Martin here :) I use the Paper app (https://wetransfer.com/paper https://wetransfer.com/paper) on an iPad, then transfer the images to a computer, do a l

Hello, Martin here :) I use the Paper app (https://wetransfer.com/paper https://wetransfer.com/paper) on an iPad, then transfer the images to a computer, do a little post-processing in Gimp and ImageMagick, and then drop the images into PowerPoint. You might be able to present directly from the Paper app, but it's more designed for drawing than for presenting.