PDF Document Alteration

I need a PDF document altered with some text changes. Requirements: - Add, remove, and modify existing text. background watermark is there, i dont want it to be disturbed much. needs to pass off as authentic document ... (Budget: ₹600 - ₹1500 INR, Jobs: Adobe Acrobat, Adobe Creative Cloud, Adobe Photoshop, Document Checking, Editing, Graphic Design, PDF, Photoshop, Proofreading, Technical Writing)