Privacy

Data we store

LeftBlank Office allows you, or an AI agent acting on your behalf, to create, edit, compile and share Typst documents on our servers. We store the following:

• Account: the display name chosen for the account, the public keys of your passkeys, browser sessions, and hashes of personal access tokens. Passkey private keys remain on your device. We do not collect email addresses or payment details.
• Agent access: the AI clients you authorize and their access tokens. Authorizations can be reviewed and revoked in Settings.
• Documents: the files of each document, including uploaded images and fonts; up to 50 earlier versions of each file; compile results, rendered pages and PDFs; and recent write requests, retained for 7 days so that a retried request is not applied twice.
• Shared documents: a document becomes public only when sharing is enabled. Anyone with the link can read it until sharing is disabled.
• Community: published posts are public, including their title, description, pages, files and the author's display name. Likes and saves are associated with your account. Downloads by visitors who are not signed in are counted using a one-way hash of their network address; the address itself is not stored.

How data is processed

Data is stored and processed on Cloudflare (Workers, D1, R2, KV and Containers), which retains short-lived request logs to operate the service. Compiling a document that imports a Typst package retrieves that package from packages.typst.org. When you or your agent ask the service to fetch a file from a URL, the service requests that URL.

We use your data solely to provide LeftBlank Office. We do not sell it, use it for advertising, or use your documents to train AI models. This site uses no analytics or advertising trackers.

The AI agent you connect is a separate service. The content it sends to LeftBlank Office, and its handling of your documents, are governed by that provider's terms and privacy policy.

Prohibited content

Sexual or adult content, political content, and any unlawful material, including copyrighted work used without permission, may not be uploaded or shared. Such material is removed when identified.

Your choices

You may at any time download the source or PDF of any document, move documents to the trash, disable sharing, and remove your community posts. To delete your account and all of its documents, email support@leftblank.app with a link to one of your documents; deletion is completed within 30 days. Other privacy enquiries may be sent to the same address.