Here's something to test and try also, Browser and Web versions:
PDF.js is in development by Mozilla Labs;
Mozilla Firefox (
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Use Chrome's built-in PDF Viewer plugin;
Google Chrome (
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Use 'Word Web App' on Outlook.com, SkyDrive and Office 365 to view PDF's online;
Internet Explorer, Firefox, Chrome (
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If you use Chrome, you can use it offline. Might be possible with Mozilla Firefox and PDF.js (not tested).
Other browsers, may require a standalone installed PDF software.