Why is it when you convert a quotation to an invoice the invoice print does not fit onto an A4 page

I've got tips to help you adjust or check the printing alignment for you invoice, kevin117.

If you're using Google Chrome, you can follow these steps:

1. Go to the Sales > Customers.
2. Select the customer's name and open the invoice you want to print.
3. Click Print or Preview, then select Print or Preview again.
4. Open the Print window by clicking the Print button.
5. Select More settings.
6. From the Paper size drop-down, choose A4.
7. Choose Custom from Scale drop-down and set it to 100.
8. Hit Print.

Please see this sample screenshot for a visual reference: 

Otherwise, feel free to check the steps for other browsers here: Print sales forms.

If you need help with other task in QuickBooks Online, you can visit our general help topics page. 

Please keep in touch with me here if there's anything else you need. I'll be around to help you out again. Thanks.