ArtRage can save images in jpg, png, tif, psd and bmp. It's always a good plan to keep a working copy of your art in ptg format as well, just in case you decide you want to make changes in it later, as our format includes layers, paint thickness, paint wetness and so on. However, here's how you can save out your ArtRage paintings in other formats:
1/ Go to the File menu
2/ Choose 'Export as Image'
3/ Select the filetype you want, enter a filename and confirm.
All done! You'll now have your artwork saved in a standard file format. If you go to the Help menu and click on 'ArtRage Manual', the section entitled 'Creating and saving paintings' goes into a little more detail.
I hope that helps!