The option is not available in the Basic Edition, but it is available in the Pro Edition. In the Basic Edition, choose the option that reads "Print -- copy with sensitive data masked". It will print with a watermark that reads "DO NOT MAIL - Data Masked"  printed diagonally throughout the document.

To send the file electronically, you can then password-protect the document and give it "Read Only" and "Print with Low Resolution" privileges before sending it.