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

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.

As expected, Dropbox and Adobe are announcing today that people can now open PDF documents stored in Dropbox using the Adobe Acrobat Reader app on Android devices. This lets users of the apps sign, ...

To change the default PDF viewer on Windows 10, you'll need to edit your default apps in the Control Panel.