After tip of the day (or if TOTD disabled, then immediately after language select) you will see 'Select mode' window. PaintCAD can works in three modes. 8bpp mode (bpp - bits per pixel) - when you want to paint 256-color images. In 8bpp-mode you can save to all formats, also you can work with GIF-animations (as gif-files and gif-animations - is 256-color).