TPTruPDF

@trupdf/collaboration

Real-time collaboration

WebSocket sync · presence · conflict-free ops

Live annotation sync, presence cursors, and selection broadcast over a small WebSocket protocol. Exponential reconnect, heartbeat ping, stop-on-destroy. Bring your own server.

F.01 — What you get

  • AnnotationManager bidirectional binding — every add/update/remove broadcasts and dedupes.
  • Presence with per-peer name + colour + cursor + selection.
  • Exponential reconnect with jitter; heartbeat ping every 30 s; missed pings trigger early reconnect.
  • Wire protocol documented in @trupdf/collaboration so any backend can host it.
API referenceStart free trial

Next step

See it in the demo

The live demo wires this feature into a full viewer. Open any PDF and try it.

Open the demoAll features