Privacy
Vellum stores the documents you upload, the reviews you create, and the comments and markup people leave on them, so anyone with a share link can review the file. It is a place to gather feedback, not to host or publish documents.
Owners sign in via Lotl Auth to create reviews; reviewers need no account and leave feedback through the share link. Your documents, reviews, and feedback are stored on the Vellum server for as long as the review exists. Reviews with no activity for 90 days are archived (read-only), and an owner can revoke a share link at any time.
What we collect
We collect and store the following:
- Review content: The PDFs and images you upload, the review titles you choose, and the version labels and filenames attached to them. Stored on the Vellum server so reviewers reached via a share link can see the document and its version history.
- Review feedback: The comments, replies and markup (pins, boxes, ink, highlights) left on a document, together with the display name and optional email a reviewer chooses to attach. A reviewer needs no account: feedback is tied to the share link and the version it was left on.
- Account identity: When you sign in to create and manage reviews, Vellum reads your Lotl account identifier, email, and verification status from Lotl Auth to establish ownership. Vellum stores your email address against your reviews so it can send you an email digest of new feedback, but only for reviews where you have turned that digest on. Vellum does not store passwords; sign-in is handled entirely by Lotl Auth.
- Operational telemetry: Aggregate request and error telemetry (timings, status codes, route names) routed through Lotl Observe so the service can be kept reliable. It is not used to profile individual reviewers.
- Moderation reports: When you report a review or comment, Vellum stores the reason you pick, any detail you add, and the email you optionally leave for a reply. Admin moderators see this to act on the report, and each admin action is recorded in an internal audit log.
Third parties
These external services receive some of your data:
- DigitalOcean — Server hosting for Vellum
- Resend — Email delivery for the owner feedback digests you opt into
Your rights
Signed in, your account page lets you export everything Vellum holds for you as a JSON file, and delete it: your reviews (and their files and comments) are removed, and your name and email are stripped from feedback you left elsewhere. Reviewers who commented anonymously can claim that feedback by signing in. We do not sell your data or use it to build advertising profiles.
Contact
Questions about privacy? Email privacy@lotlsoft.com.
Last updated: 2026-07-30.