A PDF editor that never uploads: WASM-powered text rewrites, Office conversion, OCR
Most "free" PDF tools ship your documents to a server and promise to delete them later. This one does everything inside the tab: PDF.js plus WASM rewrites embedded text layers in their original layout, converts Word, Excel and PowerPoint, rebuilds corrupted XREF tables and runs OCR on your own CPU, so nothing is ever uploaded. That kills the paywall math: no accounts, no file caps, no watermark, just ad-supported.