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.

Ubuntu's Gnome-based graphical user interface lets you open and view business documents saved in the PDF format using the Nautilus file manager and a few mouse clicks. Since Ubuntu is a Linux ...

Free software on your phone or tablet lets you scan, create, edit, annotate and even sign digitized documents on the go.

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 ...

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 ...

There are two simple ways to remove the password from a PDF file, one of which works no matter what software you have.

You can convert Apple's HEIC files to PDF on a Mac or Windows computer using the free Convertio website.