Click the magnification box in the status bar and choose a magnification level. If you need to magnify a page to a size larger than the viewer window to read it, you can use the hand tool to move the page around so that you can view all the areas on it. Moving a PDF document around with the hand tool is like moving a piece of paper around on a desk with your hand. Continuous and Continuous-Facing Pages facilitate page scrolling so that you can see the bottom of one page and the top of another. Single page layout displays one page in the document window at a time.
Continuous layout arranges the pages in a continuous vertical column.
Continuous-Facing Pages layout arranges the pages to appear side by side. If the total page count of a document is greater than two pages, the first page is displayed on the right to ensure proper display of two-page spreads. Click the page size box in the status bar, and choose one of the page layouts from the menu. Choose Single Page, Continuous, or Continuous-Facing Pages from the View menu. Setting a default view You can set a default viewing magnification, a default page layout, and other viewing defaults in the General Preferences dialog box.