QGIS 3.x

Export Heightmaps from QGIS by Print Layout
To get the highest quality heightmaps from QGIS we use the Print Layout function. This tutorial builds on the heightmap refinements taught in Export Heightmaps from QGIS by Screenshot.
Export Heightmaps from QGIS by Screenshot
This tutorial shows how to export heightmaps from QGIS 3.0.1 by using the screenshot method.

Export Heightmaps from QGIS by Print Layout