PdfCompare is an ultra-fast, 100% private PDF comparison & document utility suite that runs entirely in your browser memory via WebAssembly. Unlike traditional tools that upload sensitive NDAs, contracts, or tax data to remote cloud servers Key highlights: • Semantic word redline diff (find edited clauses & numbers) • Visual pixel canvas diff & curtain slider (spot moved stamps & logos) • Client-side IRS Form W-8BEN & W-9 filler • Text-to-PDF converter