Because this document has facing pages, we want to insert page numbers on both the left and right pages. For now, navigate to the bottom-right corner of the right-hand page by zooming in (Ctrl + [Windows] or Cmd + [Mac]). Select the Type Tool (T) from the Tools Panel (Window > Tools) and drag to create a small text frame, resting the top of the frame against the margin.
So now on the A master page in your Adobe InDesign document you should have a capital A in the text frame that we created. This is more than just a capital A though, this represents the A master in your Adobe Indesign document and it means that on every page that is attached to your A master the corresponding page number will appear in that position on your page.

There may be instances in your Adobe InDesign documents that you want to change the start page, by default the numbering starts at page one on the first page of your document but if you right click on for example page 2 you can select ‘Numbering and section options’ then you can click the button ‘Start page numbering at’ then type ‘2’ in to the box. this will snow start a new section on page two which will make page 2’s page number actually page 1. You can start new page numbering sections anywhere in your Adobe InDesign document. 
Law firms use numbered lists daily to prepare contracts, pleadings, letters and memos. Word makes activating and customizing numbering fairly straightforward. You can create simple numbered lists, such as A, B, C and 1, 2, 3. You can also customize these lists to setup specific numbering styles for your firm and practice group. Multilevel lists such as I, A, 1 are handled through Word's Outline Numbering feature, which is explained later in this chapter. Many firms rely on outline numbered lists to draw up contracts and pleadings. Like numbered lists, outline numbered lists can be customized.

InDesign is a popular publishing software application released by Adobe. It is often used by graphic designers to publish books, magazines and brochures. Along with important elements like text, graphics and logos, page numbers are essential to these publications. It is possible to add the page numbers during or after the document's completion, if you know where to look. This article will tell you how to add page numbers in InDesign.
The values for Number position (here called Aligned at), Text indent and Follow number with are in the Position section at the bottom. With multi-level numbering, you also have easy access to settings that control the type of numbering at each level, the characters before and after each level’s numbers (period versus parenthesis), and the list number style (1, a, I, etc.).
Let’s say you want to use roman numerals for the introductory pages, arabic numbers for the main body and lowercase letters for the closing pages. Each of these formats can be selected in the Page Numbering Format dialog box. First, position the insertion point where you want to start using a different page number format. Choose Format > Page > Numbering. In the Page Numbering Format list box, select a format, and then choose OK to insert the page number.

A multi-level list is a list that describes hierarchical relationships between the list paragraphs. These lists are also called outline lists because they resemble outlines. The list’s numbering scheme (as well as indentations) show rank as well as how items are subordinate to one another. You can tell where each paragraph fits in the list with respect to the paragraphs before and after it. You can include up to nine levels in a multi-level list.

Changing the numbering display affects how pages are indicated in the InDesign document, as in the Pages panel and in the page box at the bottom of a document window. The numbering display also affects how you specify page ranges when printing and exporting the document. However, the numbering display does not change the appearance of page numbers on document pages.
A best practice that we recommend to our clients is to create a base/folio master –with styled and positioned footers and current page number special characters– on which all other masters are based. This allows a footer that may contain date or issue information to be updated once and the changes are reflected in all of the master pages. If your masters only have current page number special characters then you can just add them to each master and the page numbers will be reflected when each master is applied to your document pages. document numbering in indesign