Det Kgl. Bibliotek

Det Kgl. Bibliotek / Royal Danish Library is an institution under the Danish Ministry of Culture.

The institution is a result of a merger from January 1st 2017 between the State and University Library in Aarhus and the Royal Library in Copenhagen.

The Royal Danish Library acts as the main university library for both Aarhus University and Copenhagen University as well as delivering back office services to the library at Roskilde University.

As the national library of Denmark, the Royal Danish Library is a legal deposit library. It receives copies of all Danish publications, whether in printed or in digital form. It houses the national newspaper collection, the national media archive and is the national loan centre for public libraries and small special libraries. The library houses many special collections of manuscripts, maps and photographs to name a few.

From 2006 the library has collected digitised radio and television material broadcasted in Denmark in real time. The result is a digital radio/TV archive of more than 3.2 PB of data in 2017 and several millions of hours of broadcast material. The library is also harvesting and archiving Danish internet content and collecting born digital material like e-books and material from institutional repositories of Danish universities. The library is also digitising its audio, book, and newspaper collections to name a few of the larger projects. The digital activities carried out results in more than 800TB of data each year.

The Royal Danish Library is involved in a wide range of different digital preservation activities through its participation in research and development projects nationally and internationally. In digital preservation planning, the library is known for its work on cost models: Web Archiving has been a major part of building the library’s digital collections since 1998 and with active participation in developing the open source software NetarchiveSuite: for web harvesting. The library contributes to the field of bit preservation through research and as part of a Danish partnership which has developed and implemented a national Bit Repository,, offering active bit preservation with differentiated services and bit safety levels. The Royal Danish Library has contributed actively to the research in digital preservation in the EU projects DigitalPreservationEurope, Planets and Scape. Currently, the Library is investigating what digital preservation means in a library context, and the impact of this for preservation of different types of digital material.

Royal Danish Library, Aarhus website

Royal Danish Library, Copenhagen website