In the desktop version of Imagink, you can save your current drawing by opening the drop down menu top left and by clicking on
File > Save (Ctrl + S) or
File > Save as... (Ctrl+ Shift + S)
You can export your creation also as a PNG, JPEG, PSD or a SVG format by opening the drop down menu top left and by clicking on
File > Export...(Ctrl+E)
Select the export format and where to save it and hit save.
To export your MP4 video, select
File > Export video... (Ctrl + Shift + E)