Printing · Vixyun · Tools & Content https://vixyun.top/tags/printing/ 1 post tagged “Printing”. Hugo en Mon, 19 Oct 2026 10:30:00 +0800 How Big Does This QR Code Need to Be: Bytes, Versions, and What Level H Costs https://vixyun.top/posts/qr-code-size-version-and-level/ Mon, 19 Oct 2026 10:30:00 +0800 https://vixyun.top/posts/qr-code-size-version-and-level/ A QR version is a size, not a quality: what your text costs in bits, which level pushes it into a bigger grid, and how many millimetres that needs on paper.