Rebrand PDF Product Catalogues

I have a set of large product catalogues—each one is about 50 pages—that still carry the previous owner’s branding. In total there are between five separate PDFs to update. Your task is simple but detail-critical:... (Budget: $10 - $30 USD, Jobs: Adobe Acrobat, Adobe InDesign, Adobe Photoshop, Branding, Brochure Design, Graphic Design, PDF, Print Design)