Hi,
You can insert this drawing as a canvas. In the Insert menu you will see an option for "Attached Canvas". Click that and it will open up the Attached Canvas dialog box. Select the face you would like to attach the canvas to (it seems as if you picked an orthographic view for your image, so I would probably pick either the XY, XZ, or YZ plane as your face depending on what viewpoint you are trying to reference). Then select your image file. Also, if you want to change the size of your canvas once it is inserted into the layout, you can right click your canvas in the Browser Tree and select "Calibrate". This will then allow you to choose two points on your canvas and specify the distance inbetween those points.


Hopefully this suggestion helped you! If so, feel free to mark this answer as a solution so others can benefit from this thread as well. If you would like more clarification or this didn't work for you, let me know. I would be more than happy to help!
Thanks,
James Youmatz
Product Insights Specialist for Fusion 360, Simulation, Generative Design