Sure, it's easy to create a PDF, but can you protect what you share? In this Macworld Video, Scholle Sawyer McFarland shows how to encrypt a PDF using only OS X's built in tools.

How to Create a PDF From Any Website, on Any Device A PDF document is only a click away, no matter if you're using a computer or an iPhone.

A QuickBooks file that's set to read-only will open in QuickBooks but you won't be able to edit it. Often files appear as read-only because of the type of media they are stored on.