PDFzento is a privacy-first, free all-in-one PDF toolbox with 53 tools for everyday document workflows. Everything is processed directly in your browser using client-side WebAssembly — your files never need to leave your device, with zero document uploads. Convert, compress, merge, split, edit, sign, organize, protect, redact, OCR, inspect, compare, and batch-process PDFs, including PDF↔Word, Excel, JPG, PNG, WebP, Markdown and EPUB workflows. Fast, private, and free.