Find out more about how we test. 7-Zip is open source, meaning it's completely free, even for commercial use. It's only 1MB in size, and can pack and unpack just about any compressed file archive ...

Are you trying to open a password-protected PDF or ZIP file? Then ... Yes, you can unlock a PDF file without a password. Plenty of free online PDF password cracker tools and software are available ...

But not all file compression apps are the same, and one free app tends to stand taller than the rest. ...