Guides/Collaborative whiteboard
How to collaborative whiteboard free — no upload, no watermark
Share a room code and draw together over WebRTC. Export the board as a PDF. This guide is for ProMaxPDF on promaxpdf.pro. The file never leaves your browser — students and businesses use the same local engine.
- Open the tool. No account. The page loads the editor in your browser.
- Add files. Drop files onto the page. They are read locally and never uploaded.
- Draw. Create or join a room. Export the board as PDF when done.
- Download. The result is saved to your device. Nothing is stored on a server.
FAQ
Account?
No. The room dies when everyone leaves.
Are drawings stored?
Only in memory on the connected browsers. Nothing is stored on our servers.
Export?
The canvas is saved as a one-page PDF.