Locking a PDF doesn't always mean keeping people out entirely. A lot of the time, the real goal is letting someone read a document while stopping them from printing it, copying the text out, or editing it further. PDF Champ's desktop encryption tool called Protect PDF treats those as two separate things, not one.There's the open password — the classic lock, where nobody can even see the document without typing in the right password first. Then there's a separate layer of permissions that kick in once someone's already inside the file: printing, copying text, editing the content — each of those can be switched on or off, whether or
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