I am using PowerPoint from Microsoft Office 2016. I use a lot of screenshots (save the screenshot to clipboard and paste it in PowerPoint). When using the retina display, the presentation file size becomes a lot bigger compared to the same task using a normal display. That makes sense, since the same size images would be 4X as many pixels.
There seems to be a solution. You can go to File > Compress Pictures. However, I don't think that compresses the images properly. I can set the resolution to a very low setting. That makes the images very blurry and the file size is reduced. However, the file size it still much higher than using non-retina images without any compression. The non-retina presentation is smaller file and better quality in the end. I think that the way PowerPoint calculates the resolution, that still somehow does not take into account the retina conversion by the OS.
Is there a way to use PowerPoint with a retina display, but still keep the images to a reasonable size? Can I keep PowerPoint in non-retina mode somehow?
Looking at previous posts, there used to be an option to "Open in low resolution" in File > Get Info, but that does not seem to exist anymore.