The Dutch Type Library (dtl) is producer and publisher of high-quality typefaces and develops software for the professional font production. Founded in the spring of 1990 by Dr. Frank E. Blokland, dtl was the first of its kind in the Netherlands and has grown to become the largest producer of new fonts in the Low Countries.

The Dutch Type Library creates digital typefaces of the highest design and technical quality, supporting all current digital, but also legacy font formats, including PostScript Type1, TrueType, and OpenType (cff and ttf), for all current operating systems, including macOS, Windows, and Linux.
        The Dutch Type Library also develops professional font-production tools. Originally programmed for internal use at the dtl’s studio, the applications evolved over the years and have become ultimate powerful tools. dtl’s font tools, such as dtl OTMaster, are used by software companies and type foundries worldwide.
         Fonts of the Dutch Type Library have been used and are used for corporate identities all over the world, by major institutions and multinationals such as:

the European Union, New York Stock Exchange (nyse), Amnesty International usa, Emerson Electric Co., AstraZeneca, Heerema Group and Koninklijke bam Groep. dtl fonts have been or are used by the Oxford University Press, the Gutenberg Gesellschaft and the Koninklijke Bibliotheek Brussel. Moreover through museums such as Rijksmuseum Amsterdam, Museum Boijmans Van Beuningen Rotterdam, Haags Gemeentemuseum, Centraal Museum Utrecht, Amsterdams Historisch Museum, Dordrechts Museum, Nederlands Openluchtmuseum and Museum Plantin-Moretus. The German broadcaster zdf/Phoenix and Radio Nederland Wereldomroep applied dtl fonts as corporate identity typeface, as did banks such as the Austrian 3 Banken Gruppe and F. van Lanschot Bankiers.
        dtl supplied corporate typefaces to the University Medical Center Groningen, the Danish Railways dsb and to Agis Groep Zorgverzekeraars. The largest Finnish newspaper, Helsingin Saanomat, used dtl Documenta for more than a decade. Leading designers and publishers around the world apply the sophisticated dtl fonts.