[AnhTho_FR]

In France and in most countries in EU, it's mandatory to have a PDF that follows very pecific guidelines. Can't say for sure for every country though!

[kdeldycke]

The information required on a EU invoice is detailed by Article 226, Section 4 (Content of invoices) of Council Directive 2006/112/EC on the common system of VAT: https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=OJ:...