Purchase the full-color PDF of Dropbox In 30 Minutes (2nd Edition) using a secure credit card form! The revised and expanded guide is packed with tips, screenshots, and other information that will help you get the most out of Dropbox on a PC or mobile device. After ordering, a link to download the file will be emailed to you. The .pdf file can be read on any computer screen or printed out. Your payment is secured by SSL with 128-bit encryption, and the payment is processed using PCI Compliant service providers. Your credit card statement will show a payment to the publisher, i30 Media.