macOS Sierra: Send a fax
You can fax pages directly from your Mac if your multifunction printer supports faxing.
Note: The following options might not be available for your multifunction printer. If these instructions differ from what you see onscreen, refer to the documentation that came with the printer or app you’re using.
Open the document you want to fax, then choose File > Print.
Click the PDF pop-up menu, then choose Fax PDF.
Click the Printer pop-up menu, then choose your multifunctional printer.
Enter the fax number by doing one of the following:
Type the fax number in the To field.
If you see a Contacts button to the right of the To field, click it to select a number.
To paste a number into the To field when the Edit > Paste command isn’t available, hold down the Control key as you click in the To field, then choose Paste from the menu that appears.
If your phone system requires you to dial a prefix for an outside line, type it in the Dialing Prefix field.
If you want to include a cover page, select “Use cover page,” then enter a subject and message.
To change your options, use the print options pop-up menu (the pop-up menu within the separator bar).
The top of every page has a header that contains the date and time the fax was sent, a page number, and the fax number of the sender (from Printers & Scanners preferences).
If you include a cover page, its heading contains the fax’s recipient (from the To field in the Print dialog), the fax’s sender (the name of the logged-in user), the date and time the fax was sent, the subject line (from the Subject field in the Print dialog), and the number of pages in the fax, not including the cover page. The body of the cover page contains the text you entered in the Message field in the Print dialog.