There are many ways to do this. One is that you can directly change the extension after the picture you want. If the file extension is not displayed, you can go to my computer, check the tool folder option, find the extension of the hidden known file type, and hang it to change the file format. Another method is to use format conversion software for conversion. The computer comes with one, but this one is not so good. You can also use pootoshop to convert to jpg format, or you can search for a picture conversion software on the Internet. I can't say this, and I don't use it very much!