When you click a link on a webpage for a PDF file, Safari displays the PDF in your browser window and provides a toolbar to help you view the file.
Open Safari if it is not already open, and go to the PDF page you want to view.
To see a toolbar, move the pointer to the bottom-center of the page. If you move the pointer away from the toolbar, it disappears after a moment.
The toolbar has four buttons. Point to each button to see what it does.
To change the font size, click the “Zoom in” (+) and “Zoom out” (-) buttons.
To view the PDF file in Preview, click the “Open PDF in Preview” button. After Preview opens, choose Help > Preview Help for more information about viewing PDF files.
To save the PDF file on your hard disk, click the “Save PDF to download folder” button.