Privacy
Short version: your images never leave your browser, and there is no account to leak.
Your images
Image files are read and traced entirely inside your browser using your own machine's processor. They are never uploaded, never stored, and never seen by this server. That is not a policy choice that could quietly change, it is how the tool is built, and it is why tracing responds instantly as you move a slider.
When you export, the finished outline coordinates, the output size, and your chosen file name are sent so the DXF file can be assembled, named, and a credit counted. Those coordinates are used to build your file, returned to you, and not retained.
What is stored
| Data | Why | Kept for |
|---|---|---|
| A random device ID | Counts your free exports without an account | Until you clear site data |
| Export and ad-credit counts | Enforces the free tier | Life of the device ID |
| A salted hash of your IP | Stops the free tier being farmed automatically | 30 days |
| Licence key and email | Proves your purchase and lets support reach you | Until you ask for deletion |
Your IP address is hashed with a secret salt before it is written, so the stored value cannot be turned back into an address. Raw IP addresses are not kept.
Analytics
Traffic is measured with Cloudflare's analytics. These run at the network edge and, where the optional beacon is enabled, as a small script from Cloudflare that sets no cookies, stores nothing on your device, and reports aggregate counts rather than profiles. Nothing about your visit is sold or shared for advertising.
Cookies and local storage
One cookie, ptd_did, holds your device ID. It exists solely to deliver the
service you asked for: counting your free exports and keeping a purchased licence
attached to your machine. It is strictly necessary for that, is never used for
advertising or cross-site tracking, and is never shared, which is why no cookie
banner asks about it. The same ID is mirrored in local storage along with your ad
consent choice. There are no analytics cookies and no tracking pixels.
Advertising
Google's AdSense script is present on this site for site verification and, once the site is approved, for advertising. Rewarded video ads never play unless you explicitly choose to watch one in exchange for an export, and buying the lifetime unlock removes ads entirely.
If you do opt in, the ad network named in the consent prompt sets its own cookies and applies its own privacy policy. When ads are served by Google, third-party vendors including Google use cookies to serve ads based on your prior visits to this and other websites. Google's use of advertising cookies enables it and its partners to serve ads based on your visits to this site and other sites on the internet. You can opt out of personalised advertising in Google's Ads Settings, or at www.aboutads.info. More detail on how Google uses data from sites that use its services is at policies.google.com/technologies/partner-sites.
Payments
Payments are processed by Stripe. They receive your billing details; this site never sees a card number. This site stores only your licence key, the email tied to it, and an order reference.
Your rights
Clearing your browser's site data for this domain removes your device ID and detaches you from the free-tier counters. To have a licence record deleted, or to ask what is held against your key, email [email protected] or reply to your receipt email.