Uptime Magazine is viewed on the web using the Nxtbook viewer. The Nxtbook viewer allows you to zoom, switch page views, print, and much more. Here's a brief explaination of the various options you have
Toolbar 1 (located at the top left of the Nxtbook viewer)
Zoom - Zoom in/out and adjust zoom level from 70-400%
Magnify - Open the adjustible magnifier to drag across the page.
Navigation - Turn the page forward or back and adjust page effects.
Toolbar 2 (located at the top right of the Nxtbook viewer)
Page-View - Switch the Nxtbook page mode
Save - Save this Nxtbook offline
Search - Search the Nxtbook for specific content
Help - Click for further help
Full Screen - Launch/exit fullscreen mode
Toolbar 3 (located on the middle/right side of the Nxtbook viewer)
Bookmarks - Create/manage bookmarks for the Nxtbook
E-Mail - Send a link of this nxtbook to a friend
Print - Print some or all of the Nxtbook
Notes - Create/manage notes for this nxtbook
Link - Share this link via Facebook, Twitter, etc
Toolbar 4 (located at the bottom of the Nxtbook viewer)
Subscribe - Subscription information for the Nxtbook
Contents - Interactive table of contents
Pages - Dynamic thumbnails of this nxtbook
Archives - Displays other Uptime Magazine issues
We hope that this short tutorial will help you to better enjoy Uptime Magazine on the web!