This dialog box lets you control the PDF’s initial view in the “Layout and Magnification,” “Window Options,” and “User Interface Options” sections. Then select “File| Properties…” from the Menu Bar to open the “Document Properties” dialog box. To change the initial view settings for PDFs in Acrobat, open a PDF in Acrobat whose initial view you want to specify. This means you can choose how PDFs appear on-screen when first opened. You can change the initial view settings for PDFs in Acrobat.
Initial View Settings for PDFs in Acrobat: Overview