Hello, I'm sorry if this has already been asked, but I was unable to find it on the forum. I have a screen resolution of 1920x1080 and the Paint.NET 4.0.3 maximized. I've created a picture that is 800x600 in size. The default zoom is 100%. If I select the "Zoom to Window" option, the zoom doesn't change. Also, if the picture has a bigger zoom, selecting either "Zoom to Window" or "Actual Size", both change the zoom to 100%. However, for pictures that are bigger than the window, or resizing an existing image, the zoom options work as expected. Let me know if you need additional information. Thanks, regards.