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.

Cyber-attackers frequently trick users into opening PDF files containing malicious code. Once opened, the code triggers security flaws in Adobe Reader and Acrobat and compromises the victim's entire ...

In Windows, if you right click on a file, you choose “Open With” from the pop-up menu and then you’ll see a few choices for apps to use to open that file. — Photo by Ra Dragon on Unsplash I had to ...