The best way to send a document via fax is to use the FAX app. With this application, you can quickly and easily send a document via fax anywhere in the world.

This application has different options that let you customize the way that you want to send the document. For instance, you can add the recipient's phone number and choose the format of the document that you want to send. You can also choose between different paper types and have it delivered to your door. 

This application has the option to check the status of your faxes. This way, you can track the faxes that you sent.