Learn how to always open PDF files in Protected View in Word. Stop Word from opening PDF files in Protected View using GPEDIT or REGEDIT.

Once you've decided on a native or alternative PDF reader to open your file and changed your Windows settings, locate the PDF file in File Explorer. Either double-click the file or right-click the ...

No matter your operating system, knowing how to combine PDF files is a good skill. We'll teach you the best ways to do so for Windows, macOS, or via the web.