Might want to specify the platform. on macOS that's like 2 clicks in Preview.app.
Preview.app is king.
In other news, that's precisely why I'm weary to open PDFs in (edit: recent versions of) macOS because it autosaves, and I need to have a bit-perfect copy of said PDF. I mean, I open it in Firefox or Chrome, and this is just a problem that is specific to my circumstance, but it still bugs me.