Working with a Canvas in Android, user draws lines and then I would like to export the drawing to a PDF in A3 file size. How can this be done? Should I initially define the canvas to A3 file size?
Also, I would like that Canvas to have an "Isometric Graph File" background so the user can draw lines between the isometric graph edges. See image below:

How can this be done?
Your help will be much appreciated!