document

(a) any content whatever its medium (paper or electronic form or as a sound, visual or audiovisual recording); or (b) any part of such content;

Also defined in

Commission Decision (EU, Euratom) 2015/444 of 13 March 2015 on the security rules for protecting EU classified… 32015D0444, Article 1, point (5)
any recorded information regardless of its physical form or characteristics
Regulation (EU) No 1303/2013 of the European Parliament and of the Council of 17 December 2013 laying down common… 32013R1303, Article 2, point (17)
a paper or an electronic medium bearing information of relevance in the context of this Regulation
Directive 2003/98/EC of the European Parliament and of the Council of 17 November 2003 on the re-use of public sector… 32003L0098, Article 2, point (3)
(a) any content whatever its medium (written on paper or stored in electronic form or as a sound, visual or audiovisual recording); (b) any part of such content
Regulation (EC) No 1049/2001 of the European Parliament and of the Council of 30 May 2001 regarding public access to… 32001R1049, Article 3, point (a)
any content whatever its medium (written on paper or stored in electronic form or as a sound, visual or audiovisual recording) concerning a matter relating to the policies, activities and decisions falling within the institution's sphere of responsibility