Is it possible to rotate this so that the hole indicated on the top left is at the top center? I want to be lined up corner to corner under the hole. If I can't rotate the artboard what is another way I would be able to do this...thanks so much
No. You can not rotate Illustrator artboards.
You would need to create an artboard the size of the diagonal, then center the artwork within that.
You can also:
- Select All
- Rotate 45°
Object > Artboards > Fit to Selected Art
For print reproduction services this is entirely unnecessary. You leave the artwork as you have it. This is really only needed for some sort of visual representation of a final print piece or a mock up.