how to make a A2 in inDesign? (cant see mm)

[oya2bun]

I got a problem I cant see my mm when i make a new document!

this is what i get: w:51p0 / H:66p0

please help me

[Eugene Tyson]

You can just type the measurement followed by MM to indicate milimeters

With no documents open go to Edit>Preferences>Units and Increments and set the measurement system you want to use.

[M_Jay_Victor]

You can also use any measurement type regardless of this setting simply by typing in the abbreviation after the number in a dialogue box.

IE

25mm

1in

72pt

etc

[Jongware]

Since an A2 is double the width of an A3, and InDesign can do singleton calculations in any measurement field, you can also call up the preset for an A3 and add "*2" at the end of the Width field -- regardless of the measurements!

[Peter Spier]

And for any open document you can right click an individual ruler, or the intersection box where they meet, and select the units you want to use from the list. I find it sometimes is useful to change units temporarily for some spacing tasks, but it aslo is a fast way to "correct" docs that use the wrong system.