Question about footer

Hello I had a question.

When i make a sales invoice i would like to set one line of tekst at the bottom of the page. In this line i will putt my paying term (don’t know if it is called like this in english) for example i would like to get the next sentence (translated from dutch) at the bottom of the invoice when it’s printed or shown in PDF.
“” We would like you to pay the amount within 30 days to our bank account and use the invoice number""

I know i can make own fields with this text, but my question is how do i get it at the bottom of the paper? and is there a way to get this sentence in the middle (looking at left-right)

THNX for the answers.

Gr.

You would have to do this with a custom theme. If you do not have the programming skills, hire a local programmer or web developer who understands Liquid. Otherwise, such information can be placed in the Notes field without using custom fields. You can also set default text. But it appears immediately following the other invoice information, not at the bottom.