Privacy

Who we are

LintPDF is operated by Print with Synergy / Think Neverland. Reach us at privacy@lintpdf.com .

Default demo behaviour

Files dropped into the demo are stored in memory on the marketing server for 15 minutes, then evicted. We use them to run antivirus, basic preflight, codex-pdf extraction, and LintPDF rule evaluation, and to serve the file back to you in the embedded viewer. Nothing is sent to third parties and nothing is written to long-term storage unless you opt in below.

Optional: keep a copy to improve the engine

On the demo page you will see an opt-in checkbox: "Help improve LintPDF — keep this file and findings for up to 30 days." It is off by default. The demo works identically whether you tick it or not.

If you tick the box, after preflight completes we store:

• the original PDF you uploaded,
• its filename and size in bytes,
• the structured LintPDF preflight findings,
• the upload time and a scheduled deletion time.

We do not store your IP address, browser fingerprint, account identifiers, or any cookies tied to the upload. We do not share retained files with third parties and do not use them to train external models. The PDF lives in access-controlled Cloudflare R2 object storage; metadata lives in an access-controlled Postgres database.

How long we keep it

Retained uploads are automatically deleted after 30 days. After deletion the PDF object is removed from R2 and the results record is cleared.

Why we keep it

The sole purpose is to improve LintPDF — reproducing false positives and false negatives, tuning new preflight rules against real-world layouts, and regression-testing engine releases.

Lawful basis (UK / EU GDPR)

Where UK GDPR or EU GDPR applies, we rely on your explicit consent (Article 6(1)(a)). Consent is given by ticking the checkbox on the demo page. You can withdraw consent at any time by deleting the upload (see below) or by emailing us. Withdrawing consent does not affect processing carried out before the withdrawal.

Deleting a retained upload

When your upload is stored, the demo response shows two values: a Receipt ID and a Deletion token. Keep these if you want to be able to delete the copy before it expires.

To delete on demand, either:

• Email the receipt ID and deletion token to privacy@lintpdf.com , or
• Call the API: DELETE /api/demo-retention/<id> with the header X-Deletion-Token: <token> .

If you've lost the deletion token, email us from the address you uploaded from (if any) or describe the file as best you can and we will identify and remove it.

Your rights

Where UK / EU GDPR applies you have the right to access, correct, delete, restrict, or port the personal data we hold about you, and to object to processing. To exercise any of these rights, email privacy@lintpdf.com . You also have the right to lodge a complaint with your supervisory authority (in the UK, the ICO).

Security

Retained files are stored in access-controlled Cloudflare R2 with encryption in transit (HTTPS) and at rest (provider-side). Metadata is stored in an access-controlled Postgres database. Access is restricted to authorised LintPDF maintainers.

Changes to this notice

If we materially change how retained uploads are used, we will update this notice and the demo page wording before the change takes effect.