Calculations and images
The website's calculators run in your browser. The site does not upload the values you enter or the image files you choose for the image print checker. Images are opened locally on your device; generated previews and downloads are created there too. No account is required.
The sheet layout planner can put a plan's settings into a shareable link. Anyone you send that link to can read those settings. Choose what you share and avoid putting private information into a link.
Delivering and protecting the website
When you request a page or download, the hosting and security providers process information needed to send it to you and protect the service. This can include your IP address, the requested address, browser information and request time. The website is hosted on Render. Cloudflare also processes requests when its delivery and security services are active for the site.
External reference links take you to other organisations' websites. Those services have their own privacy policies. If you use the optional connected calculator service described in Connected tools, the inputs you send through your AI client are processed by that client and the calculator service, rather than staying only in this browser.
Advertising and cookies
Google AdSense helps support this free reference through labelled advertisements on selected content and calculator pages. No audience analytics script is currently installed.
Google and its advertising partners may process information about the page, your device and your interactions with ads when advertising is enabled, and may use cookies or similar technologies to deliver and measure advertising. Personalisation depends on your choices and applicable settings. Read how Google uses information from partner sites, how Google uses cookies and Google's Privacy Policy.
Where consent is required, Google’s consent message lets you consent, refuse consent or manage optional advertising choices. To revisit or withdraw your choice, use the Privacy and cookie settings button in the footer of an ad-supported content or calculator page. The button becomes available when the consent controls are ready. You can also review Google's advertising preferences through My Ad Center and manage stored cookies through your browser settings.
About this notice
This notice describes the website as prepared on 29 October 2026. It will be updated when the site's data handling or advertising changes. For calculation sources and limits, see Sources & methods.