Unlock & Edit PDF Catalogue

I have a technical catalogue that was supplied to me only as a locked-down PDF. At the moment I can’t even view the contents, so the first step is to get it open and fully accessible. Once it is unlocked... (Budget: $10 - $30 AUD, Jobs: Adobe Acrobat, Adobe Illustrator, Adobe InDesign, Brochure Design, Content Writing, Graphic Design, PDF, Proofreading)