The 7 Best Tools to Present & Share Your PDF Files Online | TIC & Educación | Scoop.it
From www.makeuseof.com - May 24, 2016 1:07 PM
Adobe PDF files are becoming the standard “go-to” format, and it is easy to see why. They open on all operating systems, they can be password protected, copy and edit restricted, and printing can be disabled. Plus, PDF files aren’t affected by viruses, so you can open them with confidence.