Privacy policy

Last updated 2026-11-09.

Your book files

All pre-flight checks and calculators run locally in your web browser. Your PDF files and manuscript contents are never uploaded to, transmitted to, or stored on our servers. Closing the page discards everything the checker loaded.

Email, if you choose to give it

The optional email form (for the pre-upload checklist and follow-up guides) stores your email address in our mailing-list storage. We use it only for the emails described on the form. We do not sell email addresses. Every email includes an unsubscribe link, and you can ask for deletion at any time via the contact page.

Analytics

We use privacy-friendly, cookie-free analytics (Cloudflare Web Analytics) that count page views in aggregate. No advertising or cross-site tracking cookies are set by this site itself.

Advertising

This site may display advertising served by Google AdSense. If ads are active, Google and its partners may use cookies to serve ads based on your prior visits to this and other websites; you can opt out of personalized advertising in Google's Ads Settings. Third-party ad technology is governed by Google's own privacy policy.

External services

The paid deep-check service is booked through Fiverr; anything you share there is governed by Fiverr's terms and privacy policy.