Reply To: Stop ruler appearing on new documents?

What colour is the ruler? Pink or Blue?

If it's the Pink Ruler you can turn them off by going to View>Grids and Guides and choose Hide Guides, they are also not visible when you go into Preview Mode or Bleed Mode (View>Screen Mode>Preview or Bleed)

If it's blue guides you can just select them and delete them – if you can't select them then go to View>Hide Rulers

Also – the Pink Guides are document margins, if you don't want to use them then when you create a New Document you can select for the Guides to be set to 0, that will put them right to the edge of the page – but it's probably best just to Hide Guides as mentioned above.