Portable document format (PDF) files remain a popular choice for business documents ranging from contracts and forms to manuals and reports, so there's a good chance you need to open them often.

When somebody sends you a document as an attachment, don't just open it. Use the free tool Dangerzone to scrub it clean of any malevolent code. Here's how it works.

Why pay for Adobe Acrobat or risk your data with online editors when excellent open-source PDF tools offer powerful, private alternatives? These PDF editors give you complete control over your ...

There are times when Acrobat Reader DC fails to open a PDF file and displays the following error message: Adobe Acrobat Reader could not open PDF because it is either ...

PDFs have become quite a staple in our digital lives, and it's likely that you use them more often than you realize. Perhaps you're a student doing research for multiple school projects, or possibly ...

Reading PDFs on the iPad can be way better than what you get from Apple's Books app. These are the best apps to use for reading at PDF files on your iPad, or even your iPhone. The often-disliked PDF ...

Is your Chrome PDF viewer not working? There are several factors that can cause this problem such as your computer having a different default PDF reader, poor internet connection, Chrome set to ...