Nowadays we are used to consume cartography through the screen of a computer or a mobile device by means of map viewers, so that we interactively select the portion of territory we are interested in explore through a continuous territory without the traditional sheet limits of paper maps. Based on this current way of consulting geographic information, taking advantage of the possibilities offered by new technologies and preserving the essence of paper maps, the CNIG (Spanish National Centre for Geographic Information) has developed the on-demand cartography project "Mapa a la Carta” (“Map on Demand”), which highlights its cartographic information and its integration through OGC services. It is an application where the user can configure the map to their own taste and needs, allowing the choice of the portion of territory that the map will contain, the scale (within a range) and even the personalisation of the title and cover of the map. It also allows drawing points, lines and polygons on the cartography that can be labelled, or inserting other geographic data such as those that can be registered on a route on foot by means of a GPS, or other types of information downloaded from the Internet in different formats. For the development, a solution has been designed consisting of several Open Source software components. The front-end, an intuitive environment programmed in React JS, interacts with the spatial reference information by consuming the map services provided by the API-IGN, the IGN Search geographic name searches, as well as the OGC WMTS visualisation services of IGN cartography. This set of services allows the user to define the conditions of the desired map that MapFish will finally generate, in high resolution PDF format. It is very important to highlight the integration of the information with COG (Cloud-Optimized Geotiff) formats for high-resolution printing using GDAL. With all this, we go from being users or readers of cartography to creators of new maps by reusing resources, and having the digital product in PDF format in a matter of seconds with the possibility of sharing it among our contacts. Finally, to provide the solution with added value, there is also the option of having the map generated in standard or resistant paper format and with professional printing quality to be purchased in an online shop. url: https://mapaalacarta.cnig.es Technologies: WMTS, COG, GDAL, MapFish, OpenLayers, Mapea, React JS, API-IGN ________________________________________ Authors and Affiliations – Centro Nacional de Información Geográfica - Celia Sevilla Sánchez Developed by Guadaltel Track – Use cases & applications Topic – Standards, interoperability, SDIs Level – 2 - Basic. General basic knowledge is required. Language of the Presentation – English