Sending important documents? Learn how to password protect PDFs for extra security using easy steps with Adobe Acrobat and free online tools.

While PDF files are everywhere, tools for working with PDFs are harder to find. Let’s say you wanted to edit a PDF, merge multiple PDFs, split pages from a PDF, password-protect a PDF, redact ...

This guide will show you how to safely unlock your password-protected documents — including PDFs, Word, and Excel files — using Wondershare Dr.Fone.