When you start to create your document ensure you set paper size to A3.
How this is done depends on the application however see below for example in Microsoft Word:
When you save or export this document to PDF to print, the job will automatically print in A3.
If you have already created your document in A4 size, however you would like to print in A3 then you need to:
Windows
Note - This process will vary depending on your application but the process is the same
- Open document and click Print
- Choose "Microsoft Print to PDF" printer
- Set paper size to A3
- Click Print
- Save the PDF to a location on your computer
- Email PDF to [email protected] as normal
- When you go to the printer it will print in A3 automatically
Mac
- Open your document and export to PDF as normal
- Open PDF in Preview
- Click Print
- Set paper size to A3
- Choose scale as required
- Click PDF, Save as PDF
- Choose a filename and click save
- Email document to [email protected] as normal
- Done!
If all else fails, print your document and photocopy it to A3