Release Font Tools v0.1.0

2026-09-01 14:35:39 +02:00
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+# Font Tools
+
+Font Tools is a GPL-3.0-or-later, local-first browser workbench for inspecting
+TTF, OTF and WOFF fonts. It inventories SFNT tables, names, metrics, Unicode
+coverage, variable axes and OS/2 embedding restrictions; previews arbitrary
+text against local fallbacks; generates inert CSS; and can rebuild a deliberately
+simple static outline subset when the machine-readable restrictions permit it.
+
+Files never leave the browser. Parsing and subsetting run in a disposable worker
+with an 8-second operation limit. Preview rendering is contained in a scriptless
+sandboxed frame. WOFF2 is detected but not parsed in v0.1.0.
+
+Limits: 16 MiB input, 64 MiB declared expanded SFNT size, 128 tables, 65,535
+glyphs, 250,000 Unicode mappings, 20,000 preview characters and 1,024 subset
+glyphs. Suspicious WOFF ratios and invalid table bounds are rejected before the
+font library sees the data.
+
+Run `npm ci`, then `npm run check`, `npm run test:browser`, and
+`npm run package:release -- --force`. Copyright © 2026 Albrecht Degering.