Knowledge Base: Map processing

  • Upgrade plan from Start to Plus

    If you already have Start license activated, you can easily upgrade your license to Plus from inside the MapTiler Desktop application. 

    Go to File -> License... -> Upgrade your license to PLUS.

    For the upgrade, you will pay only the difference between the Plus and Start licenses, which is currently 120 USD.

    If you are using the Free version of MapTiler Desktop and you want to upgrade to a higher version, read the License activation article. If you want to upgrade to PRO, you need to download and install different binary file.

  • Modify zoom levels for map

    When you are processing a file, you define what zoom level will be rendered.  

    By default, zoom levels are calculated based on the image resolution and its geolocation. There are defined minzoom and maxzoom levels, from which one can calculate how many tiles will be rendered.

    Zoom levels in MapTiler Desktop Free/Start/Plus

    Since Free/Start/Plus version of MapTiler Desktop can process only one file at a time, it has single spinbox for minzoom and maxzoom values. 

    Zoom levels in MapTiler Desktop Pro

    In MapTiler Desktop Pro, you will get a separate dialog for setting zoom levels. It is available after georeferencing before rendering.


  • Position of the map - georeferencing

    Once the coordinate system is specified for your picture, you can already set the geographical position. By this, you define where exactly your picture is located on the planet. This transforms a picture into the map. In the best case scenario, the geographical position system was already set previously by external software and MapTiler automatically loads it. If it is not known, you have few other options how to georeference your image: Assign Location Visually (Georeferencer) This is the most common situation for scanned maps, photos from your drone or other materials captured by you. All you need to do is select

  • Georeferencer - complete functionality list

    If you select manual georeferencing in MapTiler, new windows will pop-up. All you need to do here is to select a sufficient number of points from two maps – your image and online map, to align them. The absolute minimum is three points, however, the more control points you assign, the more precise the result will be. The best choice is to pick points on different parts of the map and do it as accurate as possible: this can be accomplished by choosing corners of buildings, crossroads, peaks and other clearly identifiable points. Georeferencing itself is done by clicking on one map

  • Coordinate systems

    Each map, that should be properly overlaid needs to have defined a coordinate system (or Spatial reference system, which is just another name). There are thousands of coordinate systems, from which the most commonly used is WGS84. The geodata from national geospatial agencies usually come in the local coordinate system, like for example Ordnance Survey from the United Kingdom, where the system is EPSG:27700. The dialog for choosing of a coordinate system pops up right after the upload of the source file. MapTiler automatically loads the coordinate system, unfortunately, in some geodata, it is not included. Then, you have to

  • Geospatial PDF

    Geospatial PDF is supported input format for MapTiler. The file in GeoPDF format contains raster or vector data. They are widely used in architecture, urban planning or for maps of specific areas, like campus maps. Very often, it is an output of CAD programs like MicroStation or AutoCAD. Processing Geospatial PDFs Processing Geospatial PDF processing procedure is similar to the work with raster images. However, there are some differences to highlight: The location of GeoPDF loads mostly automatically. In case you want to change it, all methods are still available. Cutline is also imported from PDF, but it can be also

  • Map transformations

    Transformation determines the method of converting your picture into a map. This is done in MapTiler during the georeferencing stage after at least three control points are set. The most suitable transformation method is set automatically. However, you can always change this setting manually by clicking on the gear icon in Georeferencer. There are five transformation methods available. They differ in method of transforming your image as well as in a minimal number of assigned control points: Scaled Scaled transformation combines rotation, scaling, and translation. It doesn’t change angles and shapes and also preserves parallels. It requires a minimum of two control points

  • Merge multiple layers in one map

    Multiple layers are available only in MapTiler Desktop Pro (not in Free, Start and Plus versions). With MapTiler Desktop, you can either merge multiple images together and create one big map overlay, combine images on different zoom levels which changes as the end-user will zoom through the final map or merge multiple MBTiles together. Merge multiple images together to create a mosaic Creating map mosaic is similar to creating a map from an image: you drag and drop your images, georeference all of them (either visually or by other methods) and render the final map. You can also make a color correction to give all images

  • Merge MBTiles

    This feature is available in Desktop PRO and Engine versions only, not in Desktop PRO Demo. MapTiler can easily merge different maps in MBTiles format. It is also possible to replace a part of one MBTiles with another MBtiles. This feature is quite useful and saves a lot of rendering time in case you receive a new update of source data and you need to replace just a few zoom levels with this new part. Merging MBTiles is one order of magnitude faster than processing source images in MapTiler Desktop. Process of merging Merging utility is available after every rendering

  • Custom watermark

    MapTiler Desktop allows users creating own watermark. This functionality is available in MapTiler Desktop PRO version. Creating custom watermark is available in Advanced options, which appears after georeferencing an image. Watermark can be created either from an image or text, a combination of both is not possible. Image as a watermark To create a watermark from an image, load the file in PNG format by clicking on the image file link. The watermark is randomly distributed on each of the 256x256 px tiles. If you want to have your watermark aligned regularly in a grid, create 256x256 px image with watermark inside. 256px

  • KML SuperOverlay

      It is possible to easily create overlays of the Google Earth with MapTiler. Open the application, click on Google Earth KML Superoverlay and drag and drop the image inside. If the image is a GeoTiff, it already has a position inside, otherwise, you have to specify Coordinate system and Georeference. Then, click on continue, render, create a new folder and start rendering. The view button opens Google Earth application. you can also open it from the created folder by clicking on the kml file. The map is positioned on the place where it should be and perfectly overlays the terrain, it is

  • Create a 3D online globe

    A tutorial, how to create a 3d online globe and visualize in WebGLEarth. The easiest way to create an online 3d globe from an image is to prepare the texture of the whole world with a size ratio of 2:1 since there are 360 to 180 degrees. Such texture can be downloaded from David Ramsey's website. First, open the MapTiler, choose Mercator tiles and drag and drop the image inside. Confirm the suggested projection and choose bounding box. You can directly confirm the bounding box values, as the area covers the whole world. Click on continue, choose MBTiles or folder,