The Auto-Rotate And Center option in the Print dialog box automatically selects the page orientation that best matches the content and paper. For example, a spreadsheet could print horizontally, while a newsletter could print vertically. The Auto-Rotate And Center option overrides the orientation selected in Page Setup (Acrobat 10.x) or Print Setup (Acrobat 9.x).
||You can change the orientation of a page when it prints. For example, you can print a page horizontally (landscape) or vertically (portrait). You can:
Automatically rotate pages when printing
Manually rotate pages when printing