You can send an opened document directly to a fax number. Just enter the number into the HelloFax tool panel, include an optional cover page (where you fill in the “To,” “From” and “Message” boxes), and click the “Send” button. HelloFax is a paid service, but they let you fax 5 pages for free. After that, it costs 99 cents for the next 10 pages, but the price then falls to 20 cents beyond this number of pages. Or, you can sign up for a monthly subscription, starting at $9.99.