How to Fax Directly to a PDF File. Faxes traditionally are sent directly to a fax machine; the recipient receives a printed copy. For small businesses that want to encourage green environmental ...

Depending on your preference, you can use their iPhone fax app, Android fax app, email-to-fax service, or web-based faxing to send a fax without a fax machine.

If you want to send a fax with your iPhone, you'll first need to have the document handy, either in a digital format like a PDF, or a physical paper that you can take a picture of. Either way ...