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Securing Sharing
Secure External Collaboration with Guest Sharing
Overview
CAD ROOMS enables secure collaboration with external partners, clients, and suppliers without granting them access to your workspace or projects.
Instead of adding outsiders as workspace members, CAD ROOMS uses file-based sharing. External users are automatically treated as Guests, ensuring controlled, read-only access while protecting internal data and project structure.
This approach allows teams to collaborate confidently without consuming seats, increasing administrative overhead, or exposing unrelated projects.
What Is Guest Sharing?
Guest Sharing allows you to share individual files with people outside your workspace.
Key characteristics:
- Guests are not workspace members
- Guests do not consume seats
- Access is limited only to the files explicitly shared
- Permissions are read-only by default
- Guests are automatically listed in the Guest list
This ensures external collaboration remains secure, isolated, and auditable.
How to Share a File with an External User
Step 1 — Open the File Viewer
- Navigate to a Project.
- Open the file you want to share in the CAD Viewer.
Step 2 — Share the File
- Click the Share icon in the top-right corner of the Viewer.
- Enter the recipient’s email address.
- Send the invitation.
How the Invitation Process Works
Once a file is shared, CAD ROOMS automatically grants access based on the recipient’s account status.
- If the recipient already has a CAD ROOMS account
Access is granted immediately, and the recipient receives an in-platform notification.
- If the recipient is new to CAD ROOMS
The recipient receives an email invitation to set a password.
No email verification is required, reducing onboarding friction for external reviewers. After setting a password via the invitation email, the recipient can access the shared file.
In both cases:
- The recipient is automatically added to the Guest list
- No workspace seat is consumed
- No additional email verification is required
Guest access is ideal for external reviews, short-term collaboration, or stakeholders who only need visibility.
What Guests Can Do
Guests have strictly limited access:
✅ View the shared file
✅ Open the file in the 3D Viewer
✅ Add comments/annotations
🚫 Upload, replace, or modify files
🚫 Check files in or out
🚫 Contribute changes to the project
🚫 Release files or change file states
🚫 Create or manage ECOs
🚫 Access projects or workspace settings
🚫 See any content beyond the files explicitly shared with them
Managing Guest Access
View Guests
- Open Workspace Members → Guests
- See all external users and which files they can access
Revoke Access
You can revoke access at any time by:
- Removing the file share
- Removing the Guest from the Guest list
Once removed, the Guest immediately loses access to the shared file.
Why Guest Sharing Matters
- 🔐 Security by Design
External users see only what you explicitly share.
- 💺 No Seat Consumption
Share freely without increasing subscription costs.
- 📂 Project Isolation
Guests never see unrelated projects or data.
- 📜 Traceability
All sharing actions are logged and auditable.
- 🤝 Low-friction collaboration
Clients and suppliers can review designs without onboarding overhead.
Best Practices
- Share only released or review-ready files with external users
- Revoke access once collaboration is complete
- Use ECOs internally before sharing externally
- Avoid exporting files outside CAD ROOMS when secure sharing is available
Related Articles
Secure External Collaboration with Guest SharingOverviewWhat Is Guest Sharing?How to Share a File with an External UserStep 1 — Open the File ViewerStep 2 — Share the FileHow the Invitation Process WorksWhat Guests Can DoManaging Guest AccessView GuestsRevoke AccessWhy Guest Sharing MattersBest PracticesRelated Articles