Custom size (Mac)

1. In your browser press the Command ⌘ + P or the print button to open the Print Preview window and click "Print using system dialog"

2. Click the dropdown menu next to Paper Size, then select Manage Custom Sizes.

3. Click the + sign (bottom left) to create a new paper size.
4. Leave the "Non-Printable Area" set to "User Defined" and change the margins if necessary - we suggest setting it to 0
5. Click OK to return to the print dialogue box.

6. You can go back to your browser and choose the size that you created in the Paper Size section