How to bypass a password-protected PDF?

I've got a *.pdf document that's "protected" (it's basically read-only right now).
Is there any way I can "unlock" it so I can actually highlight certain sections of the text?...

Like this: http://www.pdfunlock.com/

Taylor Swift 👍

Does anyone happen to know how one might go about "unlocking" these fields so that the appropriate text can actually be entered...

John Collins29 said:

Does anyone happen to know how one might go about "unlocking" these fields so they can actually be filled in with the right text...

?