What is the collaborative whiteboard?
The ihatepdf collaborative whiteboard is a real-time shared drawing canvas that multiple people can draw on simultaneously from different devices and locations. No account needed, no software to install — open the tool, share the generated room link with anyone, and everyone can draw, sketch, write, and annotate together in real time. It uses the same WebRTC peer-to-peer technology as the P2P Share tool to sync canvas updates directly between participants' browsers.
How to start a collaborative whiteboard session — step by step
- Open ihatepdf.cv/collab-whiteboard — no sign-up required
- A unique room is created automatically and a shareable room link is generated
- Share the link with collaborators via any channel — Slack, WhatsApp, email, or SMS
- When others open the link, they join the same canvas instantly
- Everyone can draw simultaneously — each participant's strokes appear in real time on all connected screens
- When done, export the canvas as a PNG image or PDF
Drawing tools available
- Pen / freehand — smooth pressure-sensitive drawing for sketches, diagrams, and handwritten notes
- Shapes — rectangles, circles, triangles, and arrows for structured diagrams and flowcharts
- Text tool — type labels, headings, and notes directly on the canvas
- Highlighter — semi-transparent marker for annotating over existing content
- Eraser — removes strokes and shapes selectively
- Color picker — full color palette for each participant or drawing element
- Stroke width — thin, medium, and thick line weights
- Undo / redo — per-user undo history so each participant can reverse their own recent actions
Use cases
- Remote brainstorming — distributed teams sketching ideas together during a video call. The whiteboard works alongside any video conferencing tool as a shared visual scratch pad.
- Design feedback sessions — annotate wireframes, mockups, and design screenshots directly on the canvas. All participants see annotations appear in real time.
- Teaching and tutoring — tutors explaining concepts visually to students, or students working through problems together. Works on tablets with a stylus for handwriting.
- Technical diagramming — sketch system architectures, database schemas, flowcharts, and mind maps collaboratively during planning sessions.
- Workshop facilitation — run virtual sticky-note style workshops where participants contribute to a shared visual board.
- Quick sketches for document work — sketch something freehand, export as PNG or PDF, then use it in a document or email without needing design software.
Export to PDF when you are done
When the session is complete, export the whiteboard canvas as a PDF directly from the tool. The export captures the entire canvas at high resolution — all drawings, shapes, and text — as a crisp vector-and-image PDF suitable for sharing as a meeting record, attaching to a project document, or archiving. You can also export as PNG for use in presentations and documents. If the exported PDF is large, run it through Compress PDF before emailing.
Privacy — what happens to your whiteboard data?
Whiteboard canvas data is synchronized between participants using WebRTC data channels — direct encrypted connections between browsers. ihatepdf's servers act as signaling coordinators to establish the initial connection, but canvas drawing data travels peer-to-peer and is never stored on any server. When all participants close the session, the room ceases to exist. No drawings, no session history, and no participant data is retained.
Works on tablets and touchscreens
The whiteboard fully supports touch and stylus input. On an iPad with an Apple Pencil, or an Android tablet with a stylus, freehand drawing feels natural and pressure-responsive. This makes it particularly effective for tutoring, technical sketching, and design annotation use cases where precise drawing matters more than keyboard-and-mouse use.
Frequently asked questions
How many people can join the same whiteboard?
Multiple participants can join the same room simultaneously. Performance scales with the number of active simultaneous drawers — 2–10 active participants works smoothly on modern devices and connections.
Does the whiteboard persist after everyone leaves?
No. Sessions are ephemeral — when all participants close the tab, the canvas is gone. Export to PDF or PNG before closing if you need a record.
Can I use it on a phone?
Yes. The canvas resizes to fit any screen and touch drawing works in mobile browsers. For detailed work, a tablet is more comfortable than a phone screen.
Is the session private?
Room links are randomly generated and unguessable. Only people you share the link with can access the session. Drawing data is peer-to-peer and never stored on any server.
Does it require any software or plugins?
No. It runs entirely in any modern browser — Chrome, Safari, Firefox, Edge. No extensions, no downloads, no installation of any kind.