3. Use Master Pages
To create a document that is very easy to update and add images to, you can use master pages, which act as a template for your InDesign document. The great thing about them is that you can have as many different master pages for your document as you want.
You can find master pages on the Pages panel (see Figure 3). By default, each new document already has one master page: the A-Master. To access this page, double-click it in the Pages panel (Window > Pages). Whatever you add to these pages then appears on every page to which it is applied.
Master pages are usually used for page numbers, logos, background colors, copyright information, and even frames for your images to go in (but not the images themselves). You don’t actually print this page; it’s for all the elements that you want to be consistent throughout the folio.
You can have as many master pages as you like for different layouts.
The best way to divide your page up into an easy-to-use grid pattern is to use a combination of margins and ruler guides. The margins are set in the initial setup of the document, as outlined in Step 1. If you missed this step, you can change the margins by choosing Layout Menu > Margins and Columns.
To set up the guides, choose Layout Menu > Create Guides. This is a great way to make guides that evenly divide up the page area into rows and columns. The beauty is that you can then choose to fit the guides to the page edge, or to the margins you set in Step 1. That way, all areas are equal while the margins from the edge of the page are still untouched.
If you make these changes to the master page, the guides will be visible on all the pages that this master page is applied to.
Figure 3 Setting up a grid to work with master pages