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I'm having some really nice raster maps in geotiff format. I would like to add some features to these maps as well as then exporting them as tiles for serving the map from a web server.

Preferably I would want to be able to work with the different geotiff files in a software like QGis or similar. As I want to add some vector components and combine the different TIFF files before I export them to one big geotiff with all features needed.

Though my biggest problem is that in QGis I can't export geotiffs with higher resolutions than the current screen resolution, which makes it rather pointless as I'm working on a quite big map.

So I'm wondering what possible ways there are to do what I have just described. Can I combine QGis with any other tools or how would you do it?

  • You can always go directly to gdal and use translate, warp og calc to do your data manipulation. Furthermore you can prepare your tiff for Web serving with pyramids etc. – Morten Fuglsang Mar 4 '15 at 19:32
  • See gis.stackexchange.com/a/181451/67583 for how to export pretty geotiffs from the QGIS composer. – n1nj4 Feb 19 '16 at 13:45
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Of course there is a "Save as" option for raster layers which can be used to export raster layers at high resolution.

Considering combining raster layers, have a look at the Raster Calculator functionality.

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