A worked example
A 150 × 120 mm net fits A4 with 10 mm margins at 100%.
Check whether your current tray, lid or envelope fits A4, Letter or custom paper.
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Test both 0° and 90° orientations inside the paper minus your chosen margins. Show the exact fit or required scale.
A 150 × 120 mm net fits A4 with 10 mm margins at 100%.
Browser printing can still scale. The SVG has physical mm units; print at actual size and verify its 50 mm scale bar.
No. Processing runs locally in your browser. The host still receives normal requests for website pages and assets.
Use the download controls for the current tool or print from your browser. Your valid edits autosave in this browser. Export a JSON backup to move devices; see the privacy page.
No sign-up, paid API or subscription is required. Both languages use the same tools. English always opens at the root address.