Privacy policy
How this site handles browser-side files, dependencies, and website requests.
Files and calculations
Selected images and PDFs are processed in your browser memory. Application code does not upload their contents, persist them to a server, or send them to analytics. Clear the tool or close the page to release the active session. Downloads are saved wherever your browser is configured to save them.
Website requests and hosting
Loading this website creates network requests for pages, scripts and assets. The hosting provider may process IP addresses, request headers, security events and access logs under its own policies. This statement is not a claim that the infrastructure collects no data. This site is built for Cloudflare Pages hosting.
Libraries and storage
The application bundles Decimal.js, pdf-lib and Mozilla PDF.js locally. Image processing uses native Canvas and image-decoding APIs. Uploaded files are not retained in browser storage. A local preference records your analytics choice. No advertising, third-party fonts, or account database are used.
Optional Google Analytics
When enabled for this website, Google Analytics 4 runs only after you accept optional analytics. Rejecting keeps the Google tag unloaded and sends no analytics requests. Accepted analytics measures page paths, tool identifiers, interface language, output format, and success or error events. We do not send file names, file contents, entered values, URL query strings, or document text. Google may process IP addresses and device information and set first-party analytics cookies. Advertising signals and ad personalization are disabled. You can reject or withdraw consent through Privacy settings in the footer; this stops collection and removes accessible analytics cookies. Tools work with either choice.
Your choices and contact
You can use calculation tools without selecting files. Keep original documents and review downloads before sharing. Feedback is available through the public GitHub issue tracker linked on the Contact page. GitHub handles issue submissions under its own privacy policy.
Changes
This policy was updated on 23 October 2026 for optional, consent-based analytics and multilingual pages. Hosting and Google process data under their own privacy policies. Review this policy when the implementation changes.