There’s no need to stick with Windows’ preloaded applications. These time-tested apps are all free — and open source, too.

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. We tested over 20 of the top apps for viewing PDF documents and these are our top picks for ...

Portable Document Format (PDF) is considered one of the most reliable formats for communication because of its immense security. While Adobe has always provided free Acrobat Reader for opening and ...