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Licence
FacturaFit is built with open-source software. Their names and licences live on this page — the one place they belong. (This is also why no library name appears in the site's copy or in any document the tools generate: attribution is a legal duty, not a branding opportunity — ours or theirs.)
| Component | Role | Licence |
|---|---|---|
| Astro | Static site framework | MIT |
| pdf-lib | PDF generation in the browser | MIT |
| @pdf-lib/fontkit | Font embedding for generated PDFs | MIT |
| qrcode | UPI payment QR rendering | MIT |
| DejaVu Sans / DejaVu Sans Bold | Font embedded in generated PDFs (covers ₹, € and Spanish diacritics) | DejaVu Fonts Licence — a permissive free licence permitting redistribution; the fonts are public-domain-adjacent Bitstream Vera derivatives with reserved names honoured |
Tax content
The rule summaries on this site (Rule 46 and Rule 53 field lists, the GSTIN format and checksum, place-of-supply defaults, RD 1619/2012 field lists, IVA types, IRPF rates, Verifactu dates) are factual summaries of public law and official specifications, each cited to its source with a verification date. They are provided for information; the official texts prevail over any summary here.
Your documents
Documents you generate are yours, entirely — no licence, attribution or branding condition attaches to them from us. That is the design, and it is permanent.