Mozilla's latest version of Firefox conveniently includes a built-in PDF viewer. If you prefer your own PDF viewer, here's how to change it.

And, you can change your default PDF viewer for your browser by installing the Acrobat Reader browser extension. Install Adobe Acrobat Reader DC Head to the official Adobe website.

One nice customization touch is that you can set PDF Viewer to scroll through PDFs horizontally or vertically. PDF Viewer’s appearance and scrolling settings. The viewing experience is further ...

You can ditch Microsoft Edge and set another app as your default PDF reader, and in this guide, we'll show you how on Windows 10.

The Mail, Safari and iBooks apps preinstalled on the iPhone all allow you to view PDFs on your iPhone. The iBooks app offers the most dynamic set of controls for viewing PDFs, while the PDF viewer ...