Why would a view be displayed differently in different software?
Ironically, the PDF document format was designed to display the same everywhere ... but that's an overly ambitious goal. 

First note that "in the browser" isn't especially meaningful - different browsers, with different configurations, will use different engines to display the pdf. 

Your different experiences are due to those different engine(s) in your browsers vs. the acrobat reader engine, which is perhaps also used for your ipad and outlook.

My best guess is that your browsers have access to some non-standard fonts that you're using in the output, but the other engines don't. Getting the views pdf to embed those fonts, or using standard fonts instead, will probably fix it.