Do you want to open password protected PDF file? This free software can unlock ZIP or PDF file without password free on Windows PC. It works!

How to Open a WinZip File Without WinZip. By default, WinZip compresses files and folders into a ZIP container file, which is one of the most common compression formats available.

But what kind of encryption it provides depends on the program you use to create and open the ZIP file. The .zip format supports two forms of encryption and password protection.