Format and insert page number

[jskang]

Hi need your help,

Suppose I got a 10 pages document. The first 3 pages I want to display page number like i, ii, iii on the footer centre alignment. On page 4, I want to insert page number start with 1 on the footer centre alignment to 7.

page 1 display page number i
page 2 display ii
page 3 display iii
page 4 display 1
page 5 display 2
page 6 display 3 and so on till
..
page 10 display 7

I am using Acrobat 6. Can you give me instruction how to do as shown above.

Many thanks

JSKANG