On the schematc screen in simulide 04159 by clicking the left mouse button, selecting SAVE CIRCUIT AS IMAGE, by default it is png, but I select jpeg. Does not save image, in other formats save ok.
What you select is the filter to show files. If you select png it will show only png files and so on.
The type of image is determined by the extension you use when you set the file name. To save as jpg, just use the extension, for example use: mycircuit.jpg