Are you trying to open a password-protected PDF or ZIP file? Then, you already know how frustrating it can be. You try out different tools, and the result is a ...

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.

If Windows is your OS of choice, consider these open-source apps. There are tons of open-source apps for just about any task. These are all free to install and use on Windows. I've been using ...

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 ...