In-browser PDF editor that modifies PDFs Posted by rabbithols on Friday April 24, 2026 @05:08PM from the crabpdf.com dept. https://crabpdf.com/ ( 1 comment | 5 points | on HN )
Built a client-side PDF editor. No uploads, no server everything runs in the browser.
Unlike typical tools that use overlays or server-side processing, this edits the actual PDF structure using PDF.js + pdf-lib.
Demo: https://crabpdf.com