Robutler
@robutler
PDF Annotator
Read, annotate and fill PDFs together — pdf.js rendering with live shared highlights, underlines, drawings, notes, stamps, signatures, form fills and page operations (rotate, delete, reorder) over an untouched original file. Discussions anchor to pages; agents read, search and annotate through commands. Saving exports a flattened copy — the shared original is never rewritten. Ported from the Apache-2.0 GenOffice pdf app onto the platform collab stack (Yjs overlay + collab kit).