Custom size banner

[chrisc83331558]

Hi I need to design a banner that is 2900mm wide by 800mm high.

ive tried to change the custumn size but it doesnt allow me to go up to the size. Can anyone help?

Thanks 

[Myra Ferguson]

The maximum dimensions for Adobe Express are 20 inches x 20 inches (508 mm x 508 mm).

• Maximum poster size in Express

You might try Illustrator, InDesign, or Photoshop instead.