Everything wordmark.it does, free — and the millimeters a press needs

Yes. Every font, every check and every export is free from the first open — no account, no trial and no monthly fee.

No. They are read and rendered in your browser. A font file is licensed property, and it never leaves your machine.

Yes — that is the only way in. Chrome and Edge ask your permission first, and the list never leaves the page. Safari and Firefox have no way to offer that at all, so open this page in Chrome or Edge.

TTF, OTF, TTC, WOFF and WOFF2 — which is what an installed font is. One the parser cannot read is drawn without its figures rather than measured wrongly.

EU regulation 1169/2011 sets mandatory food information at an x-height of at least 1.2 mm, and allows 0.9 mm where the largest surface of the pack is under 80 cm². Check the current text of the regulation before relying on it — this tool measures, it does not advise.

The fsType field in the font says what its license allows: embed it freely, embed it for printing only, or not at all. A restricted font in a PDF is the usual reason a printer sends the file back.

From the outline itself: a capital is cut across above and below its crossbar and the narrowest run is the stem. Compared against rules of thumb for offset, flexo and screen — your printer's own figures are the ones that count.