It's easy to download a PDF document on an iPhone and save it to an app like Apple Books or iCloud Files. Here's how to do it.

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

PDFs remain a common way to share documents because they preserve formatting across devices and platforms. Sometimes, however, you end up with several separate PDFs that would be easier to handle as a ...

Portable Document Format (PDF) is one of the most widely used file formats for storing and sharing documents. It makes sense since PDFs are a universal file format that maintains layout, fonts, colors ...