Note that you can do so for any other format listed here as well.

Select File > Save As and right-click on the jpeg format.

Here is what you need to do to add it to the bar: The first adds a save as jpeg option to the image editor's quick access toolbar. I'd like to introduce two alternatives that may help you out. While you can click on File > Save As > Jpeg every time you save a newly created file, it is not really the fastest of options. Whenever you create a new file, you always see the png option first when you select the save option or use the Ctrl-S keyboard shortcut. The problem here is that Microsoft Paint does not provide you with options to change the default file format for newly created images. While it certainly has its strengths, I prefer to save the majority of screenshots as jpg images because the size of the resulting image file is usually lower than the png version.

It has been quite bothersome for some time now that Paint uses the png image format as the default save format for newly created images. I'm using the Paint app on my Windows 8 system to save screenshots as I did not bother yet to install a different application - both screenshot tool and image editor - on the operating system.

Paint cannot save this file windows 10