Send and Receive Faxes from your computer, use your scanner for faxing Snappy Fax (SF) is a full-featured fax document management system. It allows you to store previously sent faxes that can be retrieved on demand, annotated, and processed again. You can resend the entire document, or send one or more pages without the need for re-transmitting the entire document. Annotation capabilities allow you to mark up a document and send it back to the original sender for review. SF stores all fax images sent or received and by whatever method (virtual fax, inline email or email attachment, or web fax) in its local database for later retrieval.