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I have a composition of TIFF images in QGIS 3.34.1 (resolution 30 m):

enter image description here

There are 6 layers superimposed here and I want to save this composition in JPG/TIFF with preserving the original resolution 30m.

To do this, I tried to do it like here, but this way I can save only one layer.

And then how can I save several layers in JPG/TIFF so that the original resolution 30m is preserved?

senek
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    The title of the question is very misleading, you might want to phrase that better since the question has nothing to do with a QGIS "project" (i.e. .qgs .qgz). – Kalak Jan 04 '24 at 09:32
  • Well, I'm fixed the question – senek Jan 04 '24 at 13:35

1 Answers1

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You need to first create a virtual raster Raster -> Miscellaneous -> Build Virtual Raster... and merge all your input images there. Then, you can export the singular output virtual raster layer to TIFF by right-clicking on it -> Export -> Save As ... Here you can specify the output resolution, in your case keep it as "Layer Resolution"

enter image description here

For JPG you could convert the TIFF using a separate piece of software, or try this.

Andre Geo
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  • Thanks, it worked, just a little bit not as I expected. The Build Virtual Raster tool arbitrarily changes the order of the layers to be combined, but this is a topic for another question (https://gis.stackexchange.com/questions/473732/qgis-3-34-1-build-virtual-raster-from-several-layers-with-predefined-order). – senek Jan 04 '24 at 14:32