Work together in real time.
With Atrium, Cella PDF's sync server, everyone's markups reach the whole project team as they're made. Work offline and changes sync when you're back.
One Docker container on your own server, with everything it needs included.
- Your drawings stay on your own network
- The same Cella PDF apps connect to it
- Install guides: Synology, Windows, Mac, Ubuntu
docker pull sortedsol/cellapdf-server
We run and look after it for your firm, at your own address: yourfirm.cellapdf.com.
- Nightly offsite backups, kept 30 days
- Your data back whenever you leave
- More devices per person are free
Hosted plans
| Plan | People | Drawings | Price |
|---|---|---|---|
| 25-person | 25 | 50 GB | $49 a month, or $490 a year (two months free) |
| 75-person | 75 | 100 GB | $99 a month |
| Larger | By quote | By quote | By quote |
How a team joins
Start a server
Run the container yourself, or ask us to host one for your firm.
Invite the team
Each person gets the server's address and an invite code.
Join from the app
In Cella PDF, choose Sync, then Join a Sync Server, and enter the address and code.
Mark up together
Markups appear for everyone as they're made. Offline work syncs when you're back.
Do I need a server to use Cella PDF?
No. The server is optional, for teams who want markups shared live.
Are my drawings uploaded anywhere?
Not unless you choose a server. Without one there's no account and no cloud, and your drawings stay on your computer and your network.